Journal
EUROPEAN POLYMER JOURNAL
Volume 47, Issue 4, Pages 792-799Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2010.09.025
Keywords
Photopolymerization; Cationic polymerization; Photoinitiator; Onium salt
Categories
Funding
- OeAD
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A novel cationic photoinitiator namely, 2-benzyl-2-(N,N-dimethyl-2-oxo-2-phenylethyl) ammonium hexafluoroantimonate-1-(4-morpholinophenyl)-butane-1-one (BDMPP+ SbF6-), carrying two photochromophoric groups was synthesized and characterized. Theoretical absorption characteristics of the salt were studied and compared with those obtained experimentally. Photoinitiation activity of this salt was demonstrated by polymerization of various monomers at lambda = 350 nm. Upon irradiation by UV light, cationic species formed from homolytic dissociation followed by electron transfer or directly by heterolytic scission initiate cationic polymerization. (C) 2010 Elsevier Ltd. All rights reserved.
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