摘要
对比研究了聚对苯二甲酸乙二酯－聚己二酸乙二酯（ＰＥＴＡ）和聚对苯二甲酸乙二酯－聚乙二醇（ＰＥＥ）两种嵌段共聚酯的合成与性能。实验结果指出，ＰＥＴＡ的缩聚反应速度比ＰＥＥ的快，ＰＥＴＡ的玻璃化温度（Ｔｇ）高于ＰＥＥ，熔点（Ｔｍ）低于ＰＥＥ．ＰＥＴＡ的结晶速度比速度比ＰＥＥ慢，而且ＰＥＴＡ各个品面的晶粒尺寸大于ＰＥＥ；ＰＥＴＡ的染色性能明显地比ＰＥＥ差，但ＰＥＴＡ的热稳定性明显优于ＰＥＥ．
In this thesis, we have studied the synthesis and property of two kinds ofblock copolyester, PETA and PEE. In comparison with PEE, PETA has fasterrate of polycondensation, higher Tg lower Tm, lower rate of crystallization,larger crystal size, and poorer dyeability, but it has excellent thermooxidativestability.
出处
《合成技术及应用》
1996年第3期14-17,共4页
Synthetic Technology & Application
