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Ring-opening metathesis polymerization using polyisobutylene supported Grubbs second-generation catalyst†
Mohammed Al-Hashimi,M. D. Abu Bakar,Khaled Elsaid,David E. Bergbreiter,Hassan S. Bazzi
RSC Advances Pub Date : 09/02/2014 00:00:00 , DOI:10.1039/C4RA08046G
Abstract

Olefin metathesis is among the most powerful tools for the formation of regio- and steroselective carbon窶田arbon double bonds. Applying the principles of Green Chemistry to the syntheses of polymers by developing useful strategies to facilitate catalyst and polymer product separation after a polymerization is vital. In the present study, a phase selectively soluble polymer bound second generation Grubbs catalyst was successfully used to carry out ring-opening metathesis polymerization (ROMP) on norbornene and a variety of different exo-norbornene derivatives. Polymers with low ruthenium contamination levels were achieved in comparison to the non-supported Grubbs catalyst which required multiple precipitations. Furthermore, the bound catalyst exhibits similar catalytic activity to its homogenous counterpart.

Graphical abstract: Ring-opening metathesis polymerization using polyisobutylene supported Grubbs second-generation catalyst
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