素素猫武汉工程大学本科毕业论文
2013 届毕业（设计）论文
专业班级 学 号 学生姓名 指导教师 指导教师职称
学院名称 材料科学与工程
题 目 环氧丙烷和环氧氯丙烷共聚物的合成
完成日期： 2013年 月 日
武汉工程大学本科毕业论文
环氧丙烷和环氧氯丙烷共
聚物的合成
Synthesis of the Copolymer of Epoxy
Propane and Epichlorohydrin
学生姓名
指导教师
武汉工程大学本科毕业论文
摘 要
环氧氯丙烷和环氧丙烷开环共聚合成氯醚橡胶，共聚型的聚环氧氯丙烷是耐油，耐寒，耐臭氧，耐气候性和耐燃性良好的橡胶。但其合成产物中常常含有大量的低分子量齐聚物，而它们的存在则会大大影响氯醚橡胶的平均官能度及其使用性能。本论文针对上述问题，以3-氯-1-三氟氧硼-2-丙氧基三苯基氧化膦/ 三氟化硼为催化引发体系，控制反应条件，使环氧氯丙烷，环氧丙烷进行阳离子开环聚合。并对合成的环氧氯丙烷和环氧丙烷共聚物的结构和性能通过黏度和红外光谱进行测定，根据上述的测试结果，有利地说明了以上催化引发体系能有效地引发环氧氯丙烷的阳离子开环聚合，并且所得的聚合物中的低分子量的产物较少。
关键词：环氧氯丙烷和环氧丙烷共聚物； 阳离子聚合；3-氯-1-三氟氧硼-2-丙氧基三苯基氧化膦/三氟化硼引发体系
I
武汉工程大学本科毕业论文
Abstract
Epichlorohydrin and propylene oxide ring opening copolymerization of epichlorohydrin rubber, epichlorohydrin copolymer of poly is oil based, cold, ozone resistance, weather resistance and good flame resistance of rubber. But the synthetic products often contain large quantities of low molecular weight oligomers, and their presence will greatly affect the average epichlorohydrin functionality andperformance. According to the above problem in the present paper ,
3-Chloro-1-boron trifluoride oxide-2-propanoxytriphenylphosphonium salt/boron trifluoride as catalyst initiator system, controlling the reaction conditions, so that epichlorohydrin, propylene oxide for cationic ring-opening polymerization. And the synthesis of epichlorohydrin and propylene oxide copolymer structure and properties by viscosity and infrared spectra were measured, according to the above test results, a favorable description of the above catalyst initiator system could lead to ethylene chloride cationic ring-opening polymerization of propane, and from low molecular weight polymer in the product low.
Keywords：Epichlorohydrin and epoxy propane copolymers； Cationic
polymerization；
3-Chloro-1-boron trifluoride oxide-2-propanoxytriphenylphosphonium salt/boron
trifluoride initiator system
II
武汉工程大学本科毕业论文
目 录
摘 要 ........................................................................................................................................... I Abstract .......................................................................................................................................... II 前言................................................................................................................................................... 1 第一章 文献综述 ......................................................................................................................... 2
1.1 环氧氯丙烷开环聚合机理 ............................................................................................... 4
1.1.1环氧氯丙烷的阳离子开环聚合 ............................................................................ 5 1.1.2 环氧氯丙烷的配位聚合 ....................................................................................... 7 1.2 环氧氯丙烷聚合体系的研究 ........................................................................................... 8 1.3 聚环氧氯丙烷的结构与特性 ......................................................................................... 12 1.4 聚环氧氯丙烷（共聚型）的应用 ................................................................................. 14 1.5 本实验主要研究内容 ..................................................................................................... 15 第二章 实验部分 ........................................................................................................................... 16 2.1 实验试剂及仪器 ..................................................................................................................... 16
2.1.1 实验试剂 ............................................................................................................. 16 2.1.2 实验设备 ............................................................................................................. 16 2.1.3 单体精制 ............................................................................................................. 17 2.2 合成反应 ......................................................................................................................... 17
2.2.1 共聚物的合成： ................................................................................................. 17 2.3 环氧氯丙烷共聚物表征方法 ....................................................................................... 19
2.3.1 红外光谱 ............................................................................................................. 19 2.3.2 黏度法 ................................................................................................................. 19
第三章 结果与讨论 ..................................................................................................................... 22
3.1 聚合反应的实验现象及结果 ......................................................................................... 22
3.1.1 实验现象 ............................................................................................................. 22 3.1.2 实验结果与讨论 ................................................................................................. 22 3.2 红外光谱分析 ................................................................................................................. 24 3.3分子量的测试 .................................................................................................................. 25 第四章 结论 ................................................................................................................................. 34 参考文献 ......................................................................................................................................... 35 致 谢 ......................................................................................................................................... 37
