Isobutyl Vinyl Ether Polymerization

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.

Isobutyl vinyl ether polymerization.

In situ direct nmr analysis of the growing species. In order to elucidate the reason for the considerable difference in the activation energies for the propagation of styrene and isobutyl vinyl ether ibve radiation induced copolymerization of. Macromolecules 26 1643 1649 1993.

Cationic polymerization of isobutyl vinyl ether ibve was examined using a variety of metal halides. 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. The application of living cationic polymerization suffers from complex and costly additives as well as low productivity. Cationic polymerization of isobutyl vinyl ether ibve in an ionic liquid 1 octyl 3 methylimidazolium tetrafluoroborate omim bf 4 was thoroughly examined at 0 c.

Living cationic polymerization of isobutyl vinyl ether by hydrogen chloride lewis acid initiating systems in the presence of salts. In this work we attempted to develop fast living cationic polymerization of isobutyl vinyl ether ibve tailored by reduced single nucleophile in microflow system. 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. A variety of coinitiators were used in conjunction with the ibve hcl adduct acting as a cationogen.