Polymerization Vinyl Ether

Thienyl chloride initiated living cationic polymerization.

Polymerization vinyl ether.

That mediates the facial addition of polar vinyl monomers to an ionic chain end. Macromolecules 2020 53 5 1536 1542. 125 the cationic. 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.

Vinyl ethers undergo radical initiated copolymerization in the presence of specific monomers such as maleates fumarates and acrylics. A general and efficient access toward terminally functionalized poly vinyl ether s. Poly vinyl ether s pves feature a polar ether functionality in each repeat unit are derived from an inex. Shohei ida makoto ouchi mitsuo sawamoto living cationic polymerization of an azide containing vinyl ether toward addressable functionalization of polymers journal of polymer science part a.

Living cationic ring opening polymerization. Studied systems are based on i 2 hi and on zinc halides zinc chloride zinc bromide and zinc iodide. Unprecedented controlled radical vinyl polymerization crp of vinyl ethers using reversible addition fragmentation chain transfer raft polymerization is reported. We identified the cationic polymerization of vinyl ethers as a high value target to exemplify such a catalyst controlled approach.

58 was quite different from that for the living polymerization. They are increasingly used in radiation curing systems because of a lower toxicity profile than the commonly used acrylic monomers. For example the state of the art method uses a phenoxide ligated titanium complex to achieve 92 meso diads m in the polymerization of iso butyl vinyl ether ibve. In order to overcome the challenge of direct radical polymerization of vinyl ethers commercial hydroxy functional vinyl ethers such as 2 hydroxyethyl vinyl ether heve were subjected to free radical polymerization generating.

A preferred complex is a complex of lithium tetrafluoroborate and a glyme. Provided is a method for the polymerization of vinyl ethers catalyzed by complexes of a lithium salt and a polyether. The resulting polymers are produced under mild and controlled conditions and are useful in adhesives and coatings as well as in other uses such as for polymer electrolytes in batteries and for viscosity. 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.

Vinyl ethers ch 2 chor r methyl ethyl isobutyl benzyl are very reactive vinyl monomers. On the other hand the stereostructure of living poly 2 benzoyloxyethyl vinyl ether obtained in the absence of added bases meso.