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Synfacts 2011(7): 0728-0728  
DOI: 10.1055/s-0030-1260618
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Templates for Cyclic Polymers

Contributor(s): Timothy M. Swager, Olesya Haze
K. Zhang, M. A. Lackey, Y. Wu, G. N. Tew*
University of Massachusetts, Amherst, USA
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Publication History

Publication Date:
17 June 2011 (online)

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Significance

Ring-expansion metathesis polymerization (REMP) can be used to prepare perfect cyclic polymer chains. Activated ester template A was prepared from 1 using Grubbs cyclic ruthenium-alkylidene catalyst. This template was transformed into a copper(I) click-ready template B. Both templates were post-functionalized to create cyclic gels (e.g., cyclic gel A and B) and cyclic polymer brushes (A, B, B′).