Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume 52, Issue 20, Pages 2934-2946Publisher
WILEY-BLACKWELL
DOI: 10.1002/pola.27329
Keywords
cationic polymerization; kinetics (polym.); monomers; networks; photopolymerization
Categories
Funding
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1308617] Funding Source: National Science Foundation
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In the presence of small amounts of 2,2-dialkyl-, 2,2,3-trialkyl-, or 2,2,3,3-tetraalkyl substituted epoxides such as isobutylene oxide, 1,2-limonene oxide, and 2,2,3,3,-tetramethyl oxirane, the photoinitiated cationic ring-opening polymerizations of 3,3-disubstituted oxetanes are dramatically accelerated. The acceleration affect was attributed to an increase in the rate of the initiation step of these latter monomers. Both mono-and disubstituted oxetane monomers are similarly accelerated by the above-mentioned epoxides to give crosslinked network polymers. The potential for the use of such kick-started systems in applications such as coatings, adhesives, printing inks, dental composites and in three-dimensional imaging is discussed. (C) 2014 Wiley Periodicals, Inc.
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