目录摘要.................................................................................................................................1Abstract...........................................................................................................................2第一章前言....................................................................................................................31.1本文研究的背景及意义...................................................................................31.2聚对苯二甲酸1,4-丁二醇酯(PBT)的简介..................................................41.3PBT的合成方法................................................................................................61.4本文的主要研究内容.......................................................................................6第二章实验部分............................................................................................................82.1仪器与试剂......................................................................................................82.2实验方法..........................................................................................................82.3测试及表征手段..............................................................................................92.3.1核磁共振一维氢谱(1HNMR)..............................................................92.3.2热重分析(TGA)....................................................................................92.3.3差式扫描量热仪(DSC)........................................................................92.3.4样品制样压膜...........................................................................................93.结果与讨论...........................................................................................................93.1聚酯的合成与动力学研究...............................................................................93.2热力学测试结果及分析.................................................................................153.3机械性能测试及分析.....................................................................................17第四章总结..................................................................................................................18参考文献.......................................................................................................................19致谢...............................................................................................................................21摘要本文主要采用了一种原位开环-缩合级联聚合(PROP)的方法,用1,4-对苯二甲醇(1,4-Benzenedimethanol)作小分子引发剂,环状寡聚对苯二甲酸丁二醇酯(COBTs)作单体,以一锅法本体熔融聚合得到聚(对苯二甲酸丁二醇-共聚-1,4-苯二甲醇酯)共聚物。研究了引发剂和单体在不同投料的质量比5%,10%,15%,20%下,1,4-对苯二甲醇对环状寡聚单体的聚合和聚酯产物性能的影响。动力学行为研究过程中,一维核磁共振氢谱表明共聚物的分子量随着反应时间线性增加,也证明了一锅法本体熔融聚合能够成功合成无规共聚物聚(对苯二甲酸丁二醇-共聚-1,4-苯二甲醇酯)。热力学性能测试结果表明这些共聚物具有很好的热力学稳定性,对今后弹性体的物理性能与化学结构的改性研究具有潜在的研究意义。关键词:原位开环-缩合聚合,聚酯,环状寡聚物AbstractInthisarticle,wemainlystudiedthesynthesisofpoly(butylene-co-1,4-benzenedimethyleneterephthalate)randomcopolymersviatheonepotme...