Phenyl Vinyl Ketone Polymerization

Polymer films prepared with a 2 1 ratio of ag ions to polymer acetophenone groups responded with a quench of photoluminescence.

Phenyl vinyl ketone polymerization.

Well defined photodegradable poly vinyl ketone s with predictable molecular weights and low polydispersities pdi 1 16 1 21 were synthesized by raft homopolymerizations of vinyl ketone monomers using s 1 dodecyl s α α dimethyl α acetic acid trithiocarbonate as the raft agent and aibn as the initiator at 70 75 c in 2 butanone or 1 4 dioxane. The protocol is amenable to a r. Methyl vinyl ketone mvk iupac name. Polymer chemistry 2012 50 11 2150 2160.

Phenyl vinyl ketone and methyl isopropenyl ketone were also polymerized by the same organometallic catalysts. Poly phenyl vinyl ketone obtained did not exhibit much higher crystallinity compared with the conventional polymer whereas some specimens of poly methyl isopropenyl ketone prepared by the at complexes or diethylzinc as catalyst were highly crystalline. Incorporation of silver tetrafluoroborate agbf 4 into poly vinyl phenyl ketone pvpk renders the photoluminescent polymer responsive to ethylene. Herein we report the photoinduced electron transfer reversible addition fragmentation chain transfer pet raft polymerization of a range of vinyl ketone monomers including methyl ethyl and phenyl derivatives using eosin y as an organic photoredox catalyst and visible light.

Controlled nitroxide mediated radical polymerization of methyl and phenyl vinyl ketone. To prepare well defined diblock copolymer having both a poly phenyl vinyl ketone block and a polystyrene block which type of living radical polymerization technique should be used. Write out the general chemical equation for the polymer synthesis. Department of chemistry institute of organic chemistry university of münster corrensstraße 40 münster 48149 germany.

Journal of polymer science part a. Search for more papers by this author. In this study a series of photocleavable well defined triblock copolymers with the photocleavable middle block of poly phenyl vinyl ketone ppvk were readily synthesized by raft polymerization. Controlled nitroxide mediated radical polymerization of methyl and phenyl vinyl ketone.