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Ring-Opening Metathesis Polymerization of Alkyl Substituted trans-Cyclooctenes



Kathryn Beers, Wesley Farrell


The synthesis and ring-opening metathesis polymerization of highly-strained 3- and 1-butyl substituted trans-cyclooctenes (monomers 1 and 2, respectively) was investigated with the goal of quickly preparing regioregular polymers with narrow molecular weight distributions, which could serve as precursors for high precision short-chain branched polyethylene. Monomer 1 was unable to be polymerized in a regioregular manner, however monomer 2 did yield regioregular product, although the polydispersity indices were higher than expected. Investigation by NMR provided evidence that the nature of the propagating alkylidene is likely non-uniform throughout the course of the reaction, leading to the broadened molecular weight distribution.
ACS Macro Letters


ROMP, cyclooctene, controlled polymerization


Beers, K. and Farrell, W. (2017), Ring-Opening Metathesis Polymerization of Alkyl Substituted trans-Cyclooctenes, ACS Macro Letters, [online], (Accessed March 4, 2024)
Created July 12, 2017, Updated October 12, 2021