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Cationic photopolymerization of polyfunctional 1‐propenyl ether systems
Author(s) -
Sangermano Marco,
Malucelli Giulio,
Bongiovanni Roberta,
Priola Aldo,
Annby Ulf,
Rehnberg Nicola
Publication year - 2001
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.733
Subject(s) - photopolymer , trimethylolpropane , cationic polymerization , propenyl , ether , polymer chemistry , materials science , vinyl ether , tmpta , curing (chemistry) , chemistry , organic chemistry , acrylate , composite material , polymerization , polymer , monomer , polyurethane
The cationic photopolymerization of trimethylolpropane tripropenyl ether (TPE), initiated by a diaryl iodonium salt, has been investigated. The influence of the presence of different alcoholic additives on the rates of photopolymerization and on the properties of the networks obtained has been studied. New 1‐propenyl ethers (trimethylolpropane dipropenyl ether (DPE) and its acetyl ester) were synthesized and employed as modifying agents in TPE photopolymerization. The thermal and dynamic‐mechanical properties of the films obtained have been investigated and are correlated with the structure of the networks and to the mechanism of the curing reaction; a microheterogeneous structure of the network was shown by dynamic‐mechanical thermal analysis. © 2001 Society of Chemical Industry