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Precision PEG Block Copolymers

Precision PEG block copolymers combine hydrophilic PEG segments with polymer segments of different physicochemical properties to create block copolymers for self-assembly and functional-material design. Product directions include PEG combined with polylactide (PLA/PDLLA), poly(lactic-co-glycolic acid) (PLGA), polycaprolactone (PCL), and other functional segments, allowing different hydrophilic and hydrophobic architectures to be selected for the intended application. In drug-delivery research, amphiphilic PEG block copolymers can form polymeric micelles, nanoparticles, and other self-assembled carriers for studies of hydrophobic-drug encapsulation, dispersion, and release. Systems containing degradable segments can also support development of sustained-release formulations, local-delivery carriers, and biodegradable materials, enabling investigation of the relationships between carrier structure, degradation, and release behavior. In biomaterials, some PEG block systems can be further developed into thermoresponsive or injectable hydrogels, tissue-engineering scaffolds, and functional coatings. Products with defined PEG segment structures also support fundamental research by enabling more direct structural comparisons between materials, providing a material platform for nanoassembly, interfacial control, and polymer-based drug-delivery studies.

mPEG-b-PDLLA_m

Methoxy-poly(ethylene glycol)-block-Poly(D,L-lactic acid) (mPEG-b-PDLLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from D/L-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Polyester assembly; Hydrophobic-guest compatibility; Hydrolysis and stereochemical-composition studies. Customization available.

n = 5–64 · 26 Catalog Nos.View Series →

mPEG-b-PLLA_m

Methoxy-poly(ethylene glycol)-block-Poly(L-lactic acid) (mPEG-b-PLLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from L-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Stereocomplex pairing; Polyester crystallization and assembly; Polylactide segment design. Customization available.

n = 5–64 · 26 Catalog Nos.View Series →

mPEG-b-PCL_m

Methoxy-poly(ethylene glycol)-block-Poly(epsilon-caprolactone) (mPEG-b-PCL_n) is a block material that covalently combines a defined-length PEG segment with a caprolactone-derived polyester segment. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Hydrophobic-guest encapsulation studies; Amphiphilic material assembly; Polyester compatibility. Customization available.

n = 5–64 · 26 Catalog Nos.View Series →

mPEG-b-PTMC_m

Methoxy-poly(ethylene glycol)-block-Poly(trimethylene carbonate) (mPEG-b-PTMC_n) is a block material that covalently combines a defined-length PEG segment with an aliphatic carbonate backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Carbonate-segment materials; Backbone bond-type comparisons; Carrier and assembly studies. Customization available.

n = 5–64 · 26 Catalog Nos.View Series →

mPEG-b-PPhe_m

Methoxy-poly(ethylene glycol)-block-Poly(L-phenylalanine) (mPEG-b-PPhe_n) is a block material that covalently combines a defined-length PEG segment with phenylalanine residues with aromatic benzyl side chains. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Aromatic polypeptide assembly; Hydrophobic-guest compatibility; Aromatic/nonaromatic segment comparisons. Customization available.

n = 5–64 · 26 Catalog Nos.View Series →

mPEG-b-PBLG_m

Methoxy-poly(ethylene glycol)-block-Poly(gamma-benzyl L-glutamate) (mPEG-b-PBLG_n) is a block material that covalently combines a defined-length PEG segment with benzyl-ester-protected glutamate side chains. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Protected polypeptide assembly; Side-chain deprotection; Polypeptide material modification. Customization available.

n = 5–64 · 26 Catalog Nos.View Series →

mPEG-b-PDLA_m

Methoxy-poly(ethylene glycol)-block-Poly(D-lactic acid) (mPEG-b-PDLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from D-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; D/L stereocomplex pairing; Polyester material assembly; Stereochemistry and compatibility studies. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

mPEG-b-PLGA_m

Methoxy-poly(ethylene glycol)-block-Poly(lactic-co-glycolic acid) (mPEG-b-PLGA_n) is a block material that covalently combines a defined-length PEG segment with a polyester segment composed of lactic acid and glycolic acid units. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Copolymer-composition comparisons; Carrier-material studies; Hydrolysis and guest compatibility. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

mPEG-b-PGA_m

Methoxy-poly(ethylene glycol)-block-Poly(glycolic acid) (mPEG-b-PGA_n) is a block material that covalently combines a defined-length PEG segment with a glycolic-acid-derived polyester backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Polyester segment design; Hydrolysis behavior; Comparisons with structures lacking methyl side groups. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

mPEG-b-PSar_m

Methoxy-poly(ethylene glycol)-block-Polysarcosine (mPEG-b-PSar_n) is a block material that covalently combines a defined-length PEG segment with an N-methylated peptoid backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Hydrophilic segments as alternatives to PEG; Peptoid material conjugation; Hydrophilic surface-layer construction. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

mPEG-b-PMeOx_m

Methoxy-poly(ethylene glycol)-block-Poly(2-methyl-2-oxazoline) (mPEG-b-PMeOx_n) is a block material that covalently combines a defined-length PEG segment with a methyl-substituted polyoxazoline backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Hydrophilic polyoxazoline conjugation; Alternative segments to PEG; Side-group structure comparisons. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

mPEG-b-PEtOx_m

Methoxy-poly(ethylene glycol)-block-Poly(2-ethyl-2-oxazoline) (mPEG-b-PEtOx_n) is a block material that covalently combines a defined-length PEG segment with an ethyl-substituted polyoxazoline backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Polyoxazoline functionalization; Side chains and solution behavior; Alternative hydrophilic materials. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

mPEG-b-PPG_m

Methoxy-poly(ethylene glycol)-block-Poly(propylene glycol) (mPEG-b-PPG_n) is a block material that covalently combines a defined-length PEG segment with a polyether segment bearing methyl side groups. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Polyether material modification; Hydrophilic/hydrophobic segment comparisons; Segmented-material synthesis. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PDLLA_m

Hydroxyl-poly(ethylene glycol)-block-Poly(D,L-lactic acid) (HO-PEG-b-PDLLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from D/L-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Polyester assembly; Hydrophobic-guest compatibility; Hydrolysis and stereochemical-composition studies. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PLLA_m

Hydroxyl-poly(ethylene glycol)-block-Poly(L-lactic acid) (HO-PEG-b-PLLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from L-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Stereocomplex pairing; Polyester crystallization and assembly; Polylactide segment design. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PDLA_m

Hydroxyl-poly(ethylene glycol)-block-Poly(D-lactic acid) (HO-PEG-b-PDLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from D-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; D/L stereocomplex pairing; Polyester material assembly; Stereochemistry and compatibility studies. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PCL_m

Hydroxyl-poly(ethylene glycol)-block-Poly(epsilon-caprolactone) (HO-PEG-b-PCL_n) is a block material that covalently combines a defined-length PEG segment with a caprolactone-derived polyester segment. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Hydrophobic-guest encapsulation studies; Amphiphilic material assembly; Polyester compatibility. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PTMC_m

Hydroxyl-poly(ethylene glycol)-block-Poly(trimethylene carbonate) (HO-PEG-b-PTMC_n) is a block material that covalently combines a defined-length PEG segment with an aliphatic carbonate backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Carbonate-segment materials; Backbone bond-type comparisons; Carrier and assembly studies. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PLGA_m

Hydroxyl-poly(ethylene glycol)-block-Poly(lactic-co-glycolic acid) (HO-PEG-b-PLGA_n) is a block material that covalently combines a defined-length PEG segment with a polyester segment composed of lactic acid and glycolic acid units. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Copolymer-composition comparisons; Carrier-material studies; Hydrolysis and guest compatibility. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PGA_m

Hydroxyl-poly(ethylene glycol)-block-Poly(glycolic acid) (HO-PEG-b-PGA_n) is a block material that covalently combines a defined-length PEG segment with a glycolic-acid-derived polyester backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Polyester segment design; Hydrolysis behavior; Comparisons with structures lacking methyl side groups. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PSar_m

Hydroxyl-poly(ethylene glycol)-block-Polysarcosine (HO-PEG-b-PSar_n) is a block material that covalently combines a defined-length PEG segment with an N-methylated peptoid backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Hydrophilic segments as alternatives to PEG; Peptoid material conjugation; Hydrophilic surface-layer construction. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PMeOx_m

Hydroxyl-poly(ethylene glycol)-block-Poly(2-methyl-2-oxazoline) (HO-PEG-b-PMeOx_n) is a block material that covalently combines a defined-length PEG segment with a methyl-substituted polyoxazoline backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Hydrophilic polyoxazoline conjugation; Alternative segments to PEG; Side-group structure comparisons. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PEtOx_m

Hydroxyl-poly(ethylene glycol)-block-Poly(2-ethyl-2-oxazoline) (HO-PEG-b-PEtOx_n) is a block material that covalently combines a defined-length PEG segment with an ethyl-substituted polyoxazoline backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Polyoxazoline functionalization; Side chains and solution behavior; Alternative hydrophilic materials. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PPG_m

Hydroxyl-poly(ethylene glycol)-block-Poly(propylene glycol) (HO-PEG-b-PPG_n) is a block material that covalently combines a defined-length PEG segment with a polyether segment bearing methyl side groups. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Polyether material modification; Hydrophilic/hydrophobic segment comparisons; Segmented-material synthesis. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PPhe_m

Hydroxyl-poly(ethylene glycol)-block-Poly(L-phenylalanine) (HO-PEG-b-PPhe_n) is a block material that covalently combines a defined-length PEG segment with phenylalanine residues with aromatic benzyl side chains. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Aromatic polypeptide assembly; Hydrophobic-guest compatibility; Aromatic/nonaromatic segment comparisons. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

HO-PEG-b-PBLG_m

Hydroxyl-poly(ethylene glycol)-block-Poly(gamma-benzyl L-glutamate) (HO-PEG-b-PBLG_n) is a block material that covalently combines a defined-length PEG segment with benzyl-ester-protected glutamate side chains. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The hydroxyl end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of hydroxyl-terminated blocks; Block-segment ratio studies; Protected polypeptide assembly; Side-chain deprotection; Polypeptide material modification. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PDLLA_m

Primary amine-poly(ethylene glycol)-block-Poly(D,L-lactic acid) (H2N-PEG-b-PDLLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from D/L-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Polyester assembly; Hydrophobic-guest compatibility; Hydrolysis and stereochemical-composition studies. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PLLA_m

Primary amine-poly(ethylene glycol)-block-Poly(L-lactic acid) (H2N-PEG-b-PLLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from L-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Stereocomplex pairing; Polyester crystallization and assembly; Polylactide segment design. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PDLA_m

Primary amine-poly(ethylene glycol)-block-Poly(D-lactic acid) (H2N-PEG-b-PDLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from D-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; D/L stereocomplex pairing; Polyester material assembly; Stereochemistry and compatibility studies. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PCL_m

Primary amine-poly(ethylene glycol)-block-Poly(epsilon-caprolactone) (H2N-PEG-b-PCL_n) is a block material that covalently combines a defined-length PEG segment with a caprolactone-derived polyester segment. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Hydrophobic-guest encapsulation studies; Amphiphilic material assembly; Polyester compatibility. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PTMC_m

Primary amine-poly(ethylene glycol)-block-Poly(trimethylene carbonate) (H2N-PEG-b-PTMC_n) is a block material that covalently combines a defined-length PEG segment with an aliphatic carbonate backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Carbonate-segment materials; Backbone bond-type comparisons; Carrier and assembly studies. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PLGA_m

Primary amine-poly(ethylene glycol)-block-Poly(lactic-co-glycolic acid) (H2N-PEG-b-PLGA_n) is a block material that covalently combines a defined-length PEG segment with a polyester segment composed of lactic acid and glycolic acid units. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Copolymer-composition comparisons; Carrier-material studies; Hydrolysis and guest compatibility. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PGA_m

Primary amine-poly(ethylene glycol)-block-Poly(glycolic acid) (H2N-PEG-b-PGA_n) is a block material that covalently combines a defined-length PEG segment with a glycolic-acid-derived polyester backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Polyester segment design; Hydrolysis behavior; Comparisons with structures lacking methyl side groups. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PSar_m

Primary amine-poly(ethylene glycol)-block-Polysarcosine (H2N-PEG-b-PSar_n) is a block material that covalently combines a defined-length PEG segment with an N-methylated peptoid backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Hydrophilic segments as alternatives to PEG; Peptoid material conjugation; Hydrophilic surface-layer construction. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PMeOx_m

Primary amine-poly(ethylene glycol)-block-Poly(2-methyl-2-oxazoline) (H2N-PEG-b-PMeOx_n) is a block material that covalently combines a defined-length PEG segment with a methyl-substituted polyoxazoline backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Hydrophilic polyoxazoline conjugation; Alternative segments to PEG; Side-group structure comparisons. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PEtOx_m

Primary amine-poly(ethylene glycol)-block-Poly(2-ethyl-2-oxazoline) (H2N-PEG-b-PEtOx_n) is a block material that covalently combines a defined-length PEG segment with an ethyl-substituted polyoxazoline backbone. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Polyoxazoline functionalization; Side chains and solution behavior; Alternative hydrophilic materials. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PPG_m

Primary amine-poly(ethylene glycol)-block-Poly(propylene glycol) (H2N-PEG-b-PPG_n) is a block material that covalently combines a defined-length PEG segment with a polyether segment bearing methyl side groups. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Polyether material modification; Hydrophilic/hydrophobic segment comparisons; Segmented-material synthesis. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PPhe_m

Primary amine-poly(ethylene glycol)-block-Poly(L-phenylalanine) (H2N-PEG-b-PPhe_n) is a block material that covalently combines a defined-length PEG segment with phenylalanine residues with aromatic benzyl side chains. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Aromatic polypeptide assembly; Hydrophobic-guest compatibility; Aromatic/nonaromatic segment comparisons. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

H2N-PEG-b-PBLG_m

Primary amine-poly(ethylene glycol)-block-Poly(gamma-benzyl L-glutamate) (H2N-PEG-b-PBLG_n) is a block material that covalently combines a defined-length PEG segment with benzyl-ester-protected glutamate side chains. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The primary-amine end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of primary-amine-terminated blocks; Block-segment ratio studies; Protected polypeptide assembly; Side-chain deprotection; Polypeptide material modification. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

N3-PEG-b-PDLLA_m

Azido-poly(ethylene glycol)-block-Poly(D,L-lactic acid) (N3-PEG-b-PDLLA_n) is a block material that covalently combines a defined-length PEG segment with a polyester structure derived from D/L-lactic acid. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The azide end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Post-modification of azide-terminated blocks; Block-segment ratio studies; Polyester assembly; Hydrophobic-guest compatibility; Hydrolysis and stereochemical-composition studies. Customization available.

n = 4–96 · 26 Catalog Nos.View Series →

mPEG-b-POrn_m

Methoxy-poly(ethylene glycol)-block-Poly(L-ornithine) (mPEG-b-POrn) is a block material that covalently combines a defined-length PEG segment with ornithine residues with primary-amine side chains. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Multisite amine conjugation; Side-chain spacer effects; Ionic composite materials. Customization available.

n = 4–48 · 25 Catalog Nos.View Series →

mPEG-b-PDab_m

Methoxy-poly(ethylene glycol)-block-Poly(L-2,4-diaminobutyric acid) (mPEG-b-PDab) is a block material that covalently combines a defined-length PEG segment with diaminobutyric acid residues with short amino side chains. Discrete chain lengths with different degrees of polymerization are available. Different segment compositions provide a structural basis for comparing hydrophilic–hydrophobic balance, side-chain presentation, or hydrophilic backbones. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Short-side-chain amine-site conjugation; Multisite functionalization; Polypeptide ionic assembly. Customization available.

n = 4–48 · 25 Catalog Nos.View Series →

mPEG-b-POrn (NB)_m

Methoxy-poly(ethylene glycol)-block-Poly(L-ornithine) with o-nitrobenzyloxycarbonyl-protected side-chain amines (mPEG-b-POrn (NB)) is a block material that covalently combines a defined-length PEG segment with a side-chain-protected polypeptide structure. Discrete chain lengths with different degrees of polymerization are available. The o-nitrobenzyloxycarbonyl protection allows side-chain amine transformations and attachment of other segments to be performed sequentially, supporting assembly of protected polypeptides and subsequent deprotection studies. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Sequential functionalization of protected polypeptides; Topology and assembly studies. Customization available.

n = 4–48 · 25 Catalog Nos.View Series →

mPEG-b-PDab (NB)_m

Methoxy-poly(ethylene glycol)-block-Poly(L-2,4-diaminobutyric acid) with o-nitrobenzyloxycarbonyl-protected side-chain amines (mPEG-b-PDab (NB)) is a block material that covalently combines a defined-length PEG segment with a side-chain-protected polypeptide structure. Discrete chain lengths with different degrees of polymerization are available. The o-nitrobenzyloxycarbonyl protection allows side-chain amine transformations and attachment of other segments to be performed sequentially, supporting assembly of protected polypeptides and subsequent deprotection studies. The methoxy end group defines the direction of chain-end capping or further conjugation. Solution conditions and target guests can be varied to compare dispersion, assembly, and subsequent functionalization. Applications: Methoxy-capped block materials; Block-segment ratio studies; Sequential functionalization of protected polypeptides; Topology and assembly studies. Customization available.

n = 4–48 · 25 Catalog Nos.View Series →

cPEG-PEG-PDLLA_m-OH

Cyclic poly(ethylene glycol) with an outward PEG arm linked to Poly(D,L-lactic acid) and a hydroxyl terminus (cPEG-PEG-PDLLA24-OH) is a cyclic-topology derivative bearing a pendant PEG arm. The specified conjugation or functional groups are located on the pendant segment. Discrete chain lengths with different degrees of polymerization are available. The cyclic scaffold, pendant PEG arm, and fixed PDLLA24 polyester segment provide distinct spatial levels for separate studies of topology, hydrophilic–hydrophobic segment interactions, and terminal hydroxyl derivatization. Applications: Cyclic/linear topology comparisons; Polyester–polyether assembly; Terminal hydroxyl functionalization. Customization available.

n = 4–96 · 28 Catalog Nos.View Series →