An Effective chain extender(BOZ)for linear polyesters, such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT)has been prepared. The Kinetics for the reaction of PET(or PBT)and different amounts of BOZ have been investigated.

• 合成了对聚酯树酯端基具有活性的扩链剂BOZ,研究了对聚对苯二甲酸乙二酯(PET)和聚对苯二甲酸丁二酯(PBT)的扩链反应过程,扩链反应时间和扩链剂用量等对特性粘度的影响。