摘要
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。实验结果表明:合成的扩链剂对PET和PBT能起扩链增粘作用,使分子量提高。可得到特性粘度0.98的PET树脂和特性粘度1.62的PBT树脂。
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. The experimental results show that the inherent viscosity of the polyesters may be increased for only several minutes by adding small amounts BOZ. PET with inherent viscosity 0.98 and PBT with inherent viscosity 1.62 have been synthesized.
出处
《广州化工》
CAS
1989年第4期20-24,共5页
GuangZhou Chemical Industry
