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. Journal of polymer science part a. 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.

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Butenone is the organic compound with the formula ch 3 c o ch ch 2 it is a reactive compound classified as an enone in fact the simplest example thereof it is a colorless flammable highly toxic liquid with a pungent odor.

Phenyl vinyl ketone polymerization.

It is soluble in water and polar organic solvents. Methyl vinyl ketone mvk iupac name. Vinyl ketone polymers including phenyl vinyl ketone pvk are an important class of polymers due to their ability to degrade upon irradiation with ultraviolet light which makes them useful for a variety of applications. Incorporation of silver tetrafluoroborate agbf 4 into poly vinyl phenyl ketone pvpk renders the photoluminescent polymer responsive to ethylene.

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. Controlled nitroxide mediated radical polymerization of methyl and phenyl vinyl ketone. Controlled nitroxide mediated radical polymerization of methyl and phenyl vinyl ketone. Department of chemistry institute of organic chemistry university of münster corrensstraße 40 münster 48149 germany.

Polymer films prepared with a 2 1 ratio of ag ions to polymer acetophenone groups responded with a quench of photoluminescence. The protocol is amenable to a r. Polymer chemistry 2012 50 11 2150 2160. 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. 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. Search for more papers by this author. Phenyl vinyl ketone and methyl isopropenyl ketone were also polymerized by the same organometallic catalysts.

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