|
|||||
|
|
| 以PAAS为模板AM与DMC的模板共聚合反应 | |
| 引用本文： | 吴言,张玉玺,吴飞鹏,王长松.以PAAS为模板AM与DMC的模板共聚合反应[J].功能高分子学报,2009,22(1). |
| 作者姓名： | 吴言 张玉玺 吴飞鹏 王长松 |
| 作者单位： | 1. 中国科学院理化技术研究所,北京,100190;沈阳化工学院,沈阳,110142 2. 中国科学院理化技术研究所,北京,100190 3. 沈阳化工学院,沈阳,110142 |
| 摘 要： | 在水溶液中以聚丙烯酸钠(PAAS)为模板,进行了丙烯酰胺(AM)与2-甲基丙烯酰氧乙基三甲基氯化铵(DMC)的共聚合反应。研究了其聚合动力学,并对模板共聚物的序列结构进行了表征,最后对其进行了絮凝性能评价。结果表明:聚合反应符合模板聚合Ⅰ型机理,聚合反应速率分别与单体浓度和引发剂浓度的1.63和1.64次方成正比,此种共聚物与无模板参与聚合的普通共聚物相比具有更长的DMC序列长度,对高岭土悬浮液的絮凝沉降速率优于普通共聚物。 |
| 关 键 词： | 微嵌段结构 模板共聚合 聚合反应速率 P（AM-co-DMC） 絮凝剂 |
Template Copolymerization of AM and DMC in the Presence of PAAS |
|
| WU Yan,ZHANG Yu-xi,WU Fei-peng,WANG Chang-song.Template Copolymerization of AM and DMC in the Presence of PAAS[J].Journal of Functional Polymers,2009,22(1). | |
| Authors: | WU Yan ZHANG Yu-xi WU Fei-peng WANG Chang-song |
| Institution: | 1;2;1.Technical Institute of Physics and Chemistry;Chinese Academy of Science;Beijing 100190;China;2.Shenyang Institute of Chemical Technology;Shenyang 110142;China |
| Abstract: | The template copolymerization of acrylamide (AM) and 2-methacryloyloxyethyltrimeth lammonium chloride (DMC) was studied using poly sodium acrylate (PAAS) as template in aqueous solution. The polymerization kinetics, sequence distribution and the flocculant performance were investigated.The results show that the copolymerization under the effect of PAAS is in accordance with type I template mechanism. The rate of copolymerization is found to be proportional to the concentrations of monomers and initiator with exponents of 1.63 and 1.64. The presence of PAAS significantly increases the probability for long sequence of DMC in the copolymer. The setting rate of Kaolin suspensions flocculated by the copolymer obtained from template polymerization is much faster than the one flocculated by the copolymer synthesized without PAAS. |
| Keywords: | P(AM-co-DMC) micro-block structure template copolymerization polymerization rate P(AM-co-DMC) flocculant |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |