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Exchange reactions in the living cationic polymerization of alkenes
Author(s) -
Matyjaszewski Krzysztof,
Lin ChihHwa
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.19910470118
Subject(s) - cationic polymerization , chemistry , polymerization , living cationic polymerization , onium , living polymerization , polymer , living anionic polymerization , ion , ionic polymerization , polymer chemistry , photochemistry , anionic addition polymerization , organic chemistry , radical polymerization
Living cationic polymerization of alkenes is discussed in terms of rapid dynamic equilibration between carbenium ions and either covalent species or onium ions. Rates of exchange between these species have strong effect on polydispersities of the synthesized polymers. In the discussed living systems, rates of exchange are faster than rates of propagation. Propagation proceeds via classic carbocationic mechanism.