Vinyl Ethers Polymerization

125 the cationic polymerization of vinyl ethers with a urethane group 4 vinyloxybutyl n butylcarbamate and 4 vinyloxybutyl.

Vinyl ethers polymerization.

Poly vinyl ether s with a t g as high as 100 c have been obtained in the living cationic polymerization of vinyl ethers with a bulky tricyclodecane or tricyclodecene unit using hcl zncl 2 in toluene at 30 c. Journal of the american chemical society 2010 132 14 5273 5284. Degenerative chain transfer polymerization of vinyl ethers by simply using mixtures of weak and superstrong protonic acids. Free radical copolymerization of vinyl ethers is also possible.

They are increasingly used in radiation curing systems because of a lower toxicity profile than the commonly used acrylic monomers. Poly vinyl ether s pves feature a polar ether functionality in. However the polymerization under free radical conditions gives only low molecular weight oligomers and only copolymers can be synthesized. 124 the fast living cationic polymerization of vinyl ethers with sncl 4 combined with etalcl 2 in the presence of an ester as an added base was reported.

Titanium complexes of α α α α tetraaryl 1 3 dioxolane 4 5 dimethanol taddol derived from naturally abundant tartaric acid were demonstrated to function as highly effective catalysts for the stereoselective cationic polymerization of vinyl ethers ves. Living cationic polymerization tfa et 2 alcl 1 4 dioxane of the vinyl ether functionalities afforded linear poly ve s which were then subjected to polymerization involving the acetylene moieties by either cu catalyzed oxidative coupling or a rh catalyzed process with both catalytic systems promoting formation of brush shaped polymers. Coordination polymerization of polar vinyl monomers by single site metal catalysts. Vinyl ethers undergo homopolymerization via a cationic mechanism.

Vinyl ethers undergo radical initiated copolymerization in the presence of specific monomers such as maleates fumarates and acrylics. A user friendly living cationic polymerization. In general vinyl ethers possessing highly branched alkyl groups are more reactive than those bearing straight chain alkyl groups. Cationic polymerization and insertion chemistry in the reactions of vinyl ethers with α diimine pdme species.

It can be initiated with peroxide azo and redox initiators.