摘要本文研究了烷基胺对二甲基二烯丙基氯化铵（简称DMDAAC）均聚反应的影响。以高纯度DMDAAC单体为原料制备均聚物聚二甲基二烯丙基氯化铵（简称PDMDAAC）的最佳聚合工艺条件为模板反应，以单体转化率和产物特征黏度值为考察指标，研究了单体DMDAAC溶液中所含胺类杂质对其聚合反应性能的影响。研究涉及的两种烷基胺为二甲胺和二甲基烯丙基胺、可能含有的杂质为甲胺和三甲胺及其后续副产物甲基烯丙基胺、甲基二烯丙基胺、二甲基烯丙基胺以及对照杂质烯丙基胺、二烯丙基胺和三烯丙基胺。结果表明，胺类对于DMDAAC均聚聚合反应性能的影响十分显著。系列烷基胺及杂质其副产物对DMDAAC单体均聚反应活性的影响强弱顺序为：二甲胺≈甲胺<二甲基烯丙基胺 <甲基烯丙基胺<三甲胺 < 烯丙基胺 <甲基二烯丙基胺<二烯丙基胺≈三烯丙基胺。32264
关键词    二甲基二烯丙基氯化铵；聚合；胺；杂质；特征黏度
毕业论文设计说明书外文摘要
Title  Preliminary Study of the Influences of Alkyl Amines to DMDAAC Homopolymerization                                   
Abstract
The influences of alkyl amines on DMDAAC homopolymerization activity was researched in this paper． Using high purity diallyldimethylammonium chloride (DMDAAC) monomer as raw material, and the optimal polymerization reaction to preparing PDMDAAC conditions as template reaction, the influences of alkyl amines on DMDAAC homopolymerization activity was investigated. The conversion of monomer and the intrinsic viscosity of PDMDAAC were using as investigate index. The investigated impurities were two kinds of alkyl amines contained in monomer, i.e. dimethylamine and dimethylallylamine, possible impurities contained in monomer, i.e. methylamine and trimethylamine and its byproducts methylallylamine, methyldiallylamine, dimethylallylamine, and the contrast impurities allyl amine, diallyl amine and triallyl amine. The results showed that amine has great effect on DMDAAC homopolymeriziaiton ability. The obtained influence of the order was dimethylamine ≈ methylamine <dimethylallyl amine <methallyl amine <trimethylamine <allylamine <methyl diallylamine <diallylamine ≈ triallylamine.
Keyword：dimethyldiallylammonium chloride, polymerization, amine, impurity, intrinsic viscosity
 目 录
1    绪论    1
1.1    PDMDAAC结构与性质    1
1.2    影响DMDAAC聚合产物相对分子质量大小的因素    2
1.3    杂质对DMDAAC聚合性能的影响研究现状    3
1.4    存在问题    5
1.5    本课题提出的意义、研究内容    5
2    实验原理    6
2.1    DMDAAC自由基聚合反应原理    6
2.2    杂质对聚合反应影响原理    6
3    实验方案设计    8
4    实验部分    10
4.1    实验药品    10
4.2    实验步骤    10
4.3    实验结果与讨论    11
结  论    26
展  望    27
致  谢    28
参考文献29
1    绪论
二甲基二烯丙基氯化铵（dimethyldiallylammonium chloride，简称DMDAAC）为白色易吸水粉末，溶于甲醇、冰醋酸和水，不溶于其它溶剂，是目前实用价值最高的阳离子单体之一。DMDAAC单体分子中存在双键，因此可以发生聚合反应，以DMDAAC为单体制备所得到的聚合物大分子，发现其具有正电荷密度高且可调、阳离子结构单元稳定、水溶性好、高效无毒、相对分子质量易于控制等众多优点，因此被广泛应用于日用化工及水处理、造纸、纺织印染和石油开采等诸多领域中[1-6]。 烷基胺对DMDAAC均聚反应的影响研究初探:http://www.751com.cn/huaxue/lunwen_28765.html