非晶聚对苯二甲酸乙二酯的制备与表征  

Preparation and Characterization of Amorphous Poly(ethylene terephthalate)

作　　者：刘速怀[1] 张树范[1] 漆宗能[1] 张广利[2] 张鸿志[2] 

机构地区：[1]工程塑料国家重点实验室,分子科学中心,中国科学院化学研究所,北京100080 [2]北京大学化学与分子工程学院,北京100871

出　　处：《高等学校化学学报》2001年第10期1748-1751,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :5 9833310 );北京市自然科学基金 (批准号 :2 982 0 18)资助

摘　　要：采用引入 U-polymer的路线制备了非晶聚对苯二甲酸乙二酯 ( APET) .用 DSC和 DMA等手段研究了 APET的性能 .结果表明 ,经改性后得到的 APET无结晶 ,透明性得到改善 ,玻璃化转变温度和储能模量都较U\|polymer, a kind of polyarylate was synthesized by interfacial polycondensation method and its structure was characterized by IR and \{\}\+1H NMR spectra. Amorphous \{poly(ethylene\} terephthalate) (APET) was prepared with introduction of U\|polymer to improve the thermal and mechanical behavior of PET. The properties of APET were characterized by DSC and DMA. The results showed that the APET exhibits amorphism, transparency, higher glass transition temperature(\%T\%\-g) and higher storage modulus than those of PET.

关 键 词：非晶聚对苯二甲酸乙二酯 U-polymer 界面缩聚 熔融缩聚 制备 表征 改性 酯交换反应 

分 类 号：O633.14[理学—高分子化学] O631.5[理学—化学]