5 years ago

Ring-Opening Metathesis Polymerization of Butyl-Substituted trans-Cyclooctenes

Ring-Opening Metathesis Polymerization of Butyl-Substituted trans-Cyclooctenes
Wesley S. Farrell, Kathryn L. Beers
The synthesis and ring-opening metathesis polymerization of highly strained 3- and 1-butyl-trans-cyclooctenes was investigated with the goal of quickly preparing regioregular polymers with narrow molar mass distributions, which could serve as precursors for high precision short-chain branched polyethylene. 3-Butyl-trans-cyclooctene was unable to be polymerized in a regioregular manner, however 1-butyl-trans-cyclooctene did yield regioregular product, although the dispersities were higher than expected. Investigation by NMR provided evidence that the nature of the propagating alkylidene is likely nonuniform throughout the course of the reaction, leading to the broadened molar mass distribution.

Publisher URL: http://dx.doi.org/10.1021/acsmacrolett.7b00420

DOI: 10.1021/acsmacrolett.7b00420

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