dPE-ene; Discrete Unsaturated Oligoethylene

Discrete Unsaturated Oligoethylene (dPE-ene) is a family of precision oligomeric hydrocarbon chains with carbon–carbon double bonds introduced at the illustrated intervals along long methylene segments. The backbone length and number of double bonds are defined. The backbone double bonds provide reactive handles distinct from continuous methylene segments, supporting studies of hydrogenation, alkene functionalization, and the effects of double bonds on segment packing. The outer structural unit shown contains seven methylene groups and one vinylene group, with one double bond per unit. Here, n counts these outer structural units. The terminal alkyl segments are included in the molecular formula and exact molecular mass of the complete molecule.

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