Poly Vinyl Acetate Raft

It is also used in adhesives.

Poly vinyl acetate raft.

Polyvinyl acetate is prepared by the polymerization of vinyl acetate monomer free radical vinyl polymerization of the monomer vinyl acetate. Polyvinyl acetate a synthetic resin prepared by the polymerization of vinyl acetate. In its most important application polyvinyl acetate serves as the film forming ingredient in water based latex paints. Pvac is also combined with other polymers to obtain composites blends and copolymers for instance.

The new raft agents were fully. Product name description synonym. The polymerization reaction proceeded as a living polymerization and was remarkably rapid compared with approaches that use thermally initiated processes with a very short induction period. Pvp raft pvp polyvidone povidone.

Unlike the alkyne terminated raft agent at x1 the protected alkyne term. This raft agent is well suited for vinyl acetates and vinyl benzoate packaging. Two new xanthates with alkyne functionalities were synthesized for the reversible addition fragmentation chain transfer raft polymerization of vinyl acetate vac. Poly vinyl acetate with a prespecified well controlled molecular weight mw and a narrow mw distribution was successfully synthesized.

Applications edit as an emulsion in water pvac emulsions are used as adhesives for porous materials particularly for wood paper and cloth and as a consolidant for porous building stone in. Adhesives paints color enhancers and concrete additives. Two new xanthates with alkyne functionalities were synthesized for the reversible addition fragmentation chain transfer raft polymerization of vinyl acetate vac. Learn more about polyvinyl acetate in this article.

Methyl 2 iodopropionate and ethyl iodoacetate were employed as transfer agents whereas 2 2 azobis isobutyronitrile and α. Controlled living radical polymerization of vinyl acetate was achieved by a degenerative transfer process using alkyl iodides as transfer agents. The new raft agents were fully characterized by 1h and 13c nmr spectroscopy. The end group functionality contains a cyanomethyl group.

And the raft agent diphenylcarbamodithioate which will allow for additional polymerization to generate a diblock copolymer. Poly vinyl acetate with predetermined molecular weight and relatively low polydispersity was successfully synthesized. Poly vinyl acetate pvac is a thermoplastic and amorphous polymer that is employed in a large variety of industrial applications including. Poly vinyl chloride co vinyl acetate co vinyl alcohol 1 product result match criteria.