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非“活性”的端羧聚丁二烯及端羧聚丁腈胶通过THF开环聚合转变为双端正离子活性链。用液氨或二乙胺终止反应制得伯胺或叔胺端基遥爪聚丁二醇-聚烯烃-聚丁二醇三嵌段低聚物。
Non-“active” carboxyl-terminated polybutadiene and carboxylated polybutadiene nitrile were converted to double-ended cationic active chains by THF ring-opening polymerization. The reaction was terminated with liquid ammonia or diethylamine to prepare a primary or tertiary amine telechelic polybutylene glycol-polyolefm-polybutylene glycol triblock oligomer.