| 摘要 |
<p>Isobutylene polymers having functional terminal end groups are prepared by polymerizing a cationic polymerizable monomer containing isobutylene by using: (A) as an initiator and chain transfer agent, an organic compound represented by the general formula (I): <CHEM> where X represents a halogen atom or RCOO- group (in which R represents a hydrogen atom or a monovalent organic group), R<3> represents a (n+1)-valent hydrocarbon group, R<1>, R<2> represent respectively hydrogen atom or monovalent hydrocarbon group, R<1> and R<2> may be identical or different with each other, R<1> and R<2> are not hydrogen atom in a case while R<3> is an aliphatic hydrocarbon group, n is a positive integer; (B) as a catalyst, a Lewis acid; and (C) as a solvent, a hydrocarbon or halogenated hydrocarbon containing an organonitro compound. v</p> |
