Abstract: This article take the lauryl dimethyl phenmethyl ammonium bromide as the positive ion emulsifier, KOH is the catalyst, D4 is the monomer carries on the link siloxanes positive ion emulsion polymerization, based on this, in discussion kinetics of polymerization characteristic as well as polymerization process monomer proliferation rule. The findings indicated: Temperature increment, the polymerization speed increases, balanced conversion rate in 86%. The positive ion emulsifier and the KOH amount used increases, the polyreaction speed also increases, drops again to the certain extent. In addition, after when gets together starts, increases the emulsoid partical polymerization speed which dissolves micellar forms to be quick, the monomer density is low, the monomer bubble forms the emulsoid partical polymerization speed is slow, the monomer density is high, and along with polymerization advance, because proliferates the function, both density disparity changes is small, until achieves the state of equilibrium, both achieve the similar density.
Key word: Positive ion emulsion polymerization; Surrounds the siloxanes; Emulsion polymerization, dynamics characteristic t
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目 录
中文摘要 I
英文摘要 II
目录 III
1. 绪论 1
1.1 有机硅工业简介 1
1.2 我国有机硅工业存在的问题及发展方向 2
1.3 有机硅乳液聚合 3
1.3.1 阴离子乳液聚合 4
1.3.2 阳离子乳液聚合 5
1.3.3 与氨基单体共聚 5
1.4 课题的提出及研究内容 6
2．实验部分 7
2.1 主要试剂与仪器 7
2.2 实验步骤 8
2.3 样品测试 8
3．结果与讨论 9
3.1 聚合速率的研究 9
3.1.1 阳离子乳化剂用量的影响 9
3.1.2 温度的影响 10
3.1.3 催化剂用量的影响 10
3.2 单体扩散传递的研究 11
4．总结与展望 14
致谢 15
参考文献 16
