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摘要 ：本课题主要研究内容为强酸性阳离子交换树脂——乙烯基磺酸盐苯乙烯系树脂的新合成工艺。主要对乙烯基磺酸盐的选择及如何将功能基团直接接入苯乙烯骨架的合成方法进行研究，得出一种新的制备工艺，以简化传统制备方法的流程。通过对传统苯乙烯悬浮聚合的制备方法的研究，熟悉其反应的原理，及实验条件控制，对悬浮-乳液聚合方案进行各方面的调整，进行研究。尝试乳液聚合新方法合成树脂。之后对用新方法制备的树脂进行对比分析，得到结构表征、其硫含量等性能差别，确定本研究的合成方法的可行性。研究表明，本实验通过悬浮-乳液法制成的乙烯基磺酸盐——苯乙烯共聚物其磺酸盐含量低；乳液聚合虽有磺酸基的接入，但含量也不多，且树脂为粉末乳液状。7459
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关键词：阳离子交换树脂；苯乙烯聚合；悬浮-乳液聚合；磺酸盐共聚；性能
Study on the new preparation technology of cation exchange resin
Abstract: The main research topics of strong acid cation exchange resin - styrene resin vinyl sulfonate new synthesis. Mainly on the choice of the vinyl sulfonate functional groups, and how to directly access the synthesis of styrene skeleton study come up with a new preparation process, in order to simplify the process of conventional methods. Through the traditional method for preparing styrene suspension polymerization studies, familiar with the principles of the reaction, and control of experimental conditions on the suspension - emulsion various aspects of adjustment programs, conduct research. Try new method of synthetic resin emulsion. After a new method for the comparative analysis of the resin prepared to obtain structural characterization, the sulfur content of the performance difference, the synthesis of this study to determine the feasibility. Studies have shown that this experiment by suspension - vinyl sulfonate emulsion into the legal system - its salt content is low styrene copolymer; emulsion although sulfonic access, but the content is not much, and the resin was powder emulsion.
Key Words：Cation exchange resin；styrene polymerization；Suspension - emulsion polymerization ；Sulfonate copolymer；performance
目录
1绪论 1
1.1 离子交换树脂的概述 1
1.2 阳离子交换树脂的概述 3
1.3 强酸型交换树脂的应用与发展 4
1.4 阳离子交换树脂的合成工艺综述 5
1.5 本研究的内容及意义 5
2实验 6
2.1 试剂及仪器 6
2.2 乙烯基磺酸盐——苯乙烯聚合原理 7
2.2.1 悬浮聚合机理 7
2.2.2 悬浮-乳液聚合机理 7
2.2.3 乳液聚合机理 8
2.3 乙烯基磺酸盐——苯乙烯共聚物合成制备工艺 8
2.3.1 悬浮聚合法 8
2.3.2 悬浮-乳液聚合法 9
2.3.3 乳液聚合法 9
2.4 乙烯基磺酸盐——苯乙烯共聚物的性能测定 9
2.4.1 粒径测定 9
2.4.2 红外测定 9
2.4.3 磺酸盐含量测定 10
2.4.4 含水量测定 10
2.4.5 机械强度测定 10
2.4.6 抗氧化性测试 10
3结果与讨论 11
3.1 阳离子制备工艺的选择 11
3.2 不同体系乙烯基磺酸盐——苯乙烯共聚物合成工艺条件研究 11
3.2.1 悬浮-乳液聚合工艺条件研究 11
3.2.2 乳液聚合的工艺条件研究 17