Novel addition-fragmentation agent in cationic photopolymerization

TitleNovel addition-fragmentation agent in cationic photopolymerization
Publication TypeJournal Article
Year of Publication2010
AuthorsGupta, MKumar, Mehare, RS, Singh, RPal
JournalPolymer Bulletin
Volume65
Issue1
Pagination25-34
Date PublishedJUN
ISSN0170-0839
KeywordsAddition-fragmentation agent, Ammonium salt, Benzophenone, Cationic polymerization, Onium salt, Photopolymerization
Abstract

The aim of present study is to examine the photo-initiation efficiency of N,N-dimethylacrylamide-based allylic ammonium salt as one component addition-fragmentation agent (cationic photoinitiator cum radical source) in free radical accelerated cationic polymerization. Novel addition-fragmentation agent (AFA), 2-(N,N-dimethylcarboxy-3-propenyl)(phenylcarbonyl-4-phenylene) dimethyl ammonium hexafluoroantimonate (DMPDA) was synthesized as cationic photoinitiator and its initiation efficiency was examined in polymerization of cyclohexene oxide (CHO), isobutyl vinyl ether (IBVE), and n-butyl vinyl ether (n-BVE) in CH(2)Cl(2) solvent at wavelength lambda > 290 nm. The rate of polymerization increases with the increase in initiator concentration and reaction time. The results demonstrate that DMPDA acts as an efficient photoinitiator (AFA) without use of radical source in free radical accelerated cationic polymerization.

DOI10.1007/s00289-009-0182-4
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)1.215
Divison category: 
Polymer Science & Engineering