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A new photoiniferter/RAFT agent for ambient temperature rapid and well-controlled radical polymerization Part A Polymer chemistry

Author:
Tasdelen, Mehmet Atilla, Durmaz, Yasemin Yuksel, Karagoz, Bunyamin, Bicak, Niyazi, Yagci, Yusuf
Source:
Journal of polymer science 2008 v.46 no.10 pp. 3387-3395
ISSN:
0887-624X
Subject:
ambient temperature, irradiation, molecular weight, photolysis, polymerization, polymers, styrene
Abstract:
Phenacyl morpholine-4-dithiocarbamate is synthesized and characterized. Its capability to act as both a photoiniferter and reversible addition fragmentation chain transfer agent for the polymerization of styrene is examined. Polymerization carried out in bulk under ultra violet irradiation at above 300 nm at room temperature shows controlled free radical polymerization characteristics up to 50% conversions and produces well-defined polymers with molecular weights close to those predicted from theory and relatively narrow poyldispersities (Mw/Mn ~ 1.30). End group determination and block copolymerization with methyl acrylate suggest that morpholino dithiocarbamate groups were attained at the end of the polymer. Photolysis and polymerization studies revealed that polymerization proceeds via both reversible termination and RAFT mechanisms.
Agid:
2079592