摘要
本文采用PET(PEB60)和低分子量的PET熔融共缩聚,制备PET—PET(PHB60)共缩聚物。借助NMR、DSC、热台偏光显微镜对PET—PET(PHB60)共缩聚物的嵌段性、聚集态进行了研究。结果表明PET和PET(PHB60)在熔融时可发生分子链间酯交换,得到有一定嵌段性的共缩聚物;NMR分析可判定共缩聚物的嵌段程度。
In this paper, the block PET-PET(PHB60) copolycondensate was prepared by using melt condensation from PET(PHB60) copolyester and low molecular weight PET. The block property and aggregative state of PET-PET(PHB60) copolycondensate have been investigated by means of various techniques, such as NMR, DSC, polarizing microscope, etc. The results show that the block PET-PET(PHB60) copolycondensate was obtained duto in melt blending exists transesterification reaction between molecular chains of PET and PET(PHB60). NMR analysis could decide for the block degree of copolycondensate.
出处
《中国纺织大学学报》
CSCD
1995年第3期9-16,共8页
Journal of China Textile University
基金
国家自然科学基金
上海自然科学基金资助项目
关键词
对羟基苯甲酸
共缩聚物
熔融共缩聚
聚酯
polyethylene terephthalate, nuclear magnetic resonance, hydroxy-benzoic acid, copolycondensate, block property, melt co-polycondensation
