期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 45, 期 17, 页码 3986-3993出版社
WILEY
DOI: 10.1002/pola.22152
关键词
hydrolysis; ionic liquid; monomers; ROMP; synthesis
This paper describes the synthesis of a novel monomer of 5-substituted cyclooctene with the pendant of imidazolium salt (7) and the ring-opening metathesis polymerization of the functionalized. cyclooctenes (4 and 7) in CH2Cl2 and ionic liquid [bmim][PF6] by a ruthenium-based catalyst RuCl2(PCy3)(SIMes)(CHPh) (2). The polymerization, which was carried out in ionic liquid, afforded improved control over the molecular weight (M-n) and polydispersity of the resultant products (PDI <1.4). Furthermore, to facilitate the GPC measurement for molecular weight of polymers, the charged polymers (poly-7) were hydrolyzed to give uncharged polymers (poly-4*) by removing the imidazolium pendant from the polymer chains. (C) 2007 Wiley Periodicals, Inc.
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