| 摘要 |
A new class of initiators for inducing the cationic polymerization of olefins was discovered. These initiators, in conjunction with Lewis acids as coinitiators, effectively initiate the carbocationic polymerization of olefins. The new initiators are epoxides with the following general formula (I) where R1, R2 and R3 are hydrogen, alkyl, aryl or aralkyl groups, and can be the same or different, and i is a positive whole number. The Lewis acid has the general formula of MtXn where M is titanium, aluminum, boron or tin, X is a halogen, an alkyl or an alkoxy or a mixture thereof. The process is a carbocationic process, which can be living or non-living, at a temperature of from about 0 to -80 .degree.C. The polymer produced can be a homo- or copolymer (random or block) carrying hydroxy functional groups.
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