Isobutyl Vinyl Ether Polymerization

A variety of coinitiators were used in conjunction with the ibve hcl adduct acting as a cationogen.

Isobutyl vinyl ether polymerization.

Living cationic polymerization of isobutyl vinyl ether by the cf3co2h sncl4 nbu4ncl system in situ direct analysis of the growing species by1h 13c and19f nmr spectroscopy. Isobutyl vinyl ether stabilized with koh 純度 試験方法. Living cationic polymerization of isobutyl vinyl ether by hydrogen chloride lewis acid initiating systems in the presence of salts.

Cationic polymerization of isobutyl vinyl ether ibve in aqueous media suspension dispersion or emulsion using mainly bf 3 oet 2 as a co initiator is reported. Judging from the precipitation temperature in the polymerization of vinyl isobutyl ether catalyzed by bf 3 oet 2 at 78 c the polyvinyl ethers obtained from a homogeneous polymerization system are of a more isotactic structure than those obtained from a related heterogeneous system at low monomer concentration. In situ direct nmr analysis of the growing species. Cationic polymerization of isobutyl vinyl ether ibve was examined using a variety of metal halides.

The application of living cationic polymerization suffers from complex and costly additives as well as low productivity. Macromolecules 26 1643 1649 1993. In the presence of 2 6 dimethylpyridine as an added base living cationic polymerization of isobutyl vinyl ether was achieved in n hexane at 0 to 40 c with the 1 isobutoxy ethyl acetate. Journal of physical organic chemistry 1995 8 4 282 292.