点击放大环状聚乙二醇-聚乙二醇臂-DMA(n=45)274-crown-91-PEG45-DMA; Cyclic poly(ethylene glycol) bearing a PEG arm conjugated to N,N-Ditetradecylacetamide (arm n=45)
点击放大环状聚乙二醇-聚乙二醇臂-羟基(n=45)274-crown-91-PEG45-OH; Hydroxyl-terminated PEG arm on a cyclic poly(ethylene glycol) scaffold (arm n=45)
点击放大环状聚乙二醇-聚乙二醇臂-氨基(n=45)274-crown-91-PEG45-NH2; Primary amine-terminated PEG arm on a cyclic poly(ethylene glycol) scaffold (arm n=45)
点击放大环状聚乙二醇-聚乙二醇臂-羧甲基(n=45)274-crown-91-PEG45-CH2COOH; Carboxylic acid-terminated PEG arm on a cyclic poly(ethylene glycol) scaffold (arm n=45)