02153nas a2200217   4500008004100000022001400041245008800055210006900143260005700212300001200269490000700281520136000288653003301648653002801681653001401709653002101723653002401744100002501768700002001793856012201813       2009                        eng d  a0170-083900aNovel allylic phosphonium salts in free radical accelerated cationic polymerization0 aNovel allylic phosphonium salts in free radical accelerated cati  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcMAR  a271-2800 v623 a<p>In the present study, the synthesis and evaluation of novel allylic phosphonium salts as addition fragmentation agents in combination of conventional (photo-/thermal) free radical source for cationic polymerization are described. The amide based allylic phosphonium salts, namely 2-(N, N-dimethylcaboxy-propenyl) triphenylphosphonium hexafluoroantimonate (DMTPH) and 2-(morpholinocarboxy-propenyl) triphenyl phosphonium hexafluoroantimonate (MTPH) were synthesized and characterized. The thermal and photo-latency of these salts was examined with and without free radical sources in bulk polymerization of cyclohexene oxide (CHO) salts at 70 A degrees C and lambda &gt; 290 nm irradiation, respectively. In presence of thermal free radical source, the order of activity was observed as PAT &gt; BPO &gt; AIBN. The order of activity of free radical sources on photopolymerization was found to be benzoin &gt; benzophenone &gt; TMDPO. In addition, photopolymerization of other cationically polymerizable monomers (such as n-butyl vinyl ether, isobutyl vinyl ether, N-vinyl carbazole and glycidyl phenyl ether) was also examined at lambda &gt; 290 nm irradiation. It is concluded that the rate of cationic polymerization can be accelerated using novel phosphonium salts with combination of free radical sources, by both thermal and photochemical mode.</p>10aAddition fragmentation agent10aCationic polymerization10aInitiator10aphosphonium salt10aPhotopolymerization1 aGupta, Mukesh, Kumar1 aSingh, Raj, Pal  uhttps://library.ncl.res.in/content/novel-allylic-phosphonium-salts-free-radical-accelerated-cationic-polymerization-0