Ring-opening metathesis polymerization of 1,2-disubstituted cyclopropenes. 2016

Benjamin R Elling, and Jessica K Su, and Yan Xia
Department of Chemistry, Stanford University, Stanford, CA 94305, USA. yanx@stanford.edu.

The ring-opening metathesis polymerization (ROMP) of 1,2-disubstituted cyclopropenes (CPs) has been explored for the first time using Grubbs 3rd generation catalyst. A range of 1,2-CPs yielded polymers with controllable MWs and low dispersitities, and allowed the synthesis of block copolymers, absent from secondary metathesis. However, there existed a competing intramolecular termination pathway for these monomers, limiting the timescale for their ROMP to stay living.

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