In various embodiments, the present invention is directed to a centrally-functionalizable living cationic polymer or copolymer having a centrally-substituted tetraene group having the formula
wherein each R is selected from the group consisting of a polymer or a copolymer, such as a polyisobutylene polymer or a poly(isobutylene-b-styrene) copolymer.
在不同的实施方案中,本发明涉及一种可中心官能化的活阳离子聚合物或共聚物,该聚合物具有中心取代的四烯基,其式为
其中每个 R 选自聚合物或共聚物组成的组,例如聚
异丁烯聚合物或聚(
异丁烯-
苯乙烯)共聚物。