Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published August 12, 2008 | public
Journal Article

ROMP−ATRP Block Copolymers Prepared from Monotelechelic Poly(oxa)norbornenes Using a Difunctional Terminating Agent

Abstract

Novel block copolymers were prepared by combining ROMP and ATRP. Using the fast initiating ruthenium metathesis catalyst (H_2IMes)(Cl)_2(pyr)_2RuCHPh and (Z)-but-2-ene-1,4-diyl bis(2-bromopropanoate) as a terminating agent, three different monotelechelic poly(oxa)norbornenes were synthesized. Complete end-functionalization was shown by carrying out the ATRP of styrene and tert-butyl acrylate from the poly(oxa)norbornenes using a CuBr/PMDETA catalyst system. GPC showed no remaining homopolymer, and all block copolymers were found to have matching theoretical and observed molecular weights and low polydispersities.

Additional Information

© 2008 American Chemical Society. Received 30 April 2008. Published online 2 July 2008. Published in print 1 August 2008. The authors thank Materia for catalyst and the National Science Foundation for funding (Grant CHE-0410425).

Additional details

Created:
August 19, 2023
Modified:
October 26, 2023