Method of preparing allyl-terminated polyisobutylene

Details Method of preparing allyl-terminated polyisobutylene Method of preparing allyl-terminated polyisobutylene

C - Chemistry, Metallurgy

08

F

402/582

C08F 8/42 (2006.01) C08F 2/38 (2006.01) C08F 10/10 (2006.01) C08F 210/10 (2006.01)

Patent

CA 1296135

METHOD OF PREPARING ALLYL-TERMINATED POLYISOBUTYLENE ABSTRACT The invention relates to a method of preparing allyl-terminated polyisobutylene (PIB) by allylation with allyltrimethylsilane of tertiary chloro-capped PIB by electrophilic substitution. The synthesis begins with the BC13 catalyzed mono- or oligo-tertiary chloride "inifer" initiated polymerization of isobutylene, followed in the same reaction vessel by the addition of hexane, allyltrimethyl- cilane and TiC14.

543233

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