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A new conceptualization in relation to ionic polymerizations
Author(s) -
Saegusa Takeo
Publication year - 1988
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.19880130110
Subject(s) - polymerization , nucleophile , electrophile , ionic polymerization , chemistry , reactivity (psychology) , polymer chemistry , photochemistry , radical polymerization , organic chemistry , polymer , catalysis , medicine , alternative medicine , pathology
A new systematization is presented for the polymerization reactions in relation to the so‐called “Ionic Polymerizations'. The basis of the new systematization, is the concept of the reaction between “Electrophile” and “Nucleophile”. The reactants are either ions (cation or anion) or dipoles. Polymerization reactions except free radical polymerization and polycondensation are classified into three categories depending upon the reactivity characteristics (electrophilic or nucleophilic) of the propagating species. a. Polymerization via electrophilic propagating species b. Polymerization via nucleophilic propagating species c. Polymerization via zwitterions Emphasis is placed on the polymerization reactions which propagate through covalent species having nucleophilic or electrophilic reactivity. By this systematization, several polymerization systems which have been treated as unusual or exceptional cases are thus reasonably categorized.