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Living cationic polymerization of vinyl monomers: New initiators and functional polymer synthesis
Author(s) -
Sawamoto Mitsuo,
Higashimura Toshinobu
Publication year - 1991
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19910470107
Subject(s) - cationic polymerization , living cationic polymerization , polymerization , chemistry , monomer , polymer chemistry , vinyl polymer , polymer , styrene , copolymer , living anionic polymerization , lewis acids and bases , anionic addition polymerization , vinyl ether , organic chemistry , catalysis
This paper focuses on two recent topics in living cationic polymerization of vinyl monomers, i.e. , (a) Development of new initiating systems: RCOOH/Lewis acid for vinyl ethers; CH 3 CH(C 6 H 5 )Cl/SnCl 4 / n Bu 4 NCl for styrene. (b) Synthesis of shape‐controlled poly(vinyl ethers): Tri‐armed star polymers; Multi‐armed spherical polymers. For the RCOOH‐based systems, a generalized concept of living cationic polymerization was discussed on the basis of the effects of the counteranions (or R) and Lewis acids (ZnCl 2 and EtAlCl 2 ). The CH 3 CH(C 6 H 5 )Cl‐based system permitted a truly living cationic polymerization of styrene. The tri‐ and multi‐armed poly(vinyl ethers) included new amphiphilic polymers of unique topology, solubility, etc., all of which were prepared by living cationic polymerization.