第39泰第4期 2017年8月
土水建筑与环境工程
Journal of Civil,Architectural &Environmental Engineering
doi:10.11835/j.issn.1674-4764.2017.04. 013
超声波引发合成阳离子聚丙烯酰胺
及其表征
Vol. 39 No. 4 Aug. 2017
唐晓曼1-2，张世欣1-2，谢俊怡3，徐斌成1-2，郑怀礼1-2，冯力1.2(1.重庆大学城市建设与环境工程学院，重庆400045；2.重庆市水处理混疑剂
工程技术研究中心，重庆400045;3.重庆市第一中学校，重庆401331）
摘要：在超声波和VA-044引发体系下，丙烯酰胺（AM）单体和丙烯酰氧乙基三甲基氯化铵(DAC)阳离子单体通过共聚合成阳离子聚丙烯酰胺P(AM-DAC)，该方法具有反应时间短、合成效率高等优点。研究了合成过程中的关键因素对P(AM-DAC)特性粘度的影响规律，并对其合成条件进行优化。实验结果表明：当AM:DAC=3:2、引发剂浓度为0.02%、超声20min、反应体系pH 值为4时，合成的P(AM-DAC)特性粘度最大。红外光谱表征结果表明,P(AM-DAC)是AM与
200C范围内其有良好稳定性。
关键调：超声波；阳离子聚丙烯酰胺；丙烯酰氧乙基三甲基氯化铵；混凝
中图分类号：X703.1
文献标志码：A文章编号：1674-4764(2017)04-0083-06
Ultrasonicinitiatedsvnthesisandcharacterizationof
cationicpolyacrylamide
Tang Xiaominl.2,Zhang Shixin1-2,Xie Junyi",Xu Binchengl-2,ZhengHuailil.2,Feng Lil.2
(1. School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 4oo045, P. R. China; 2. Chongqing Engineering Research Center of Water Treatment Coagulant, Chongqing 400045,
P. R. China; 3. Chongqing No. 1 Middle School, Chongqing 4o1331, P. R. China)
Abstract:In this study, a cationic polyacrylamide (P(AM-DAC)) was synthesized via the copolymerization of acrylamide （AM) and acryloyloxyethyl trimethyl ammonium chloride （DAC） under the initiation system of ultrasonic with VA-044. In the synthesis, the short preparation time and high preparation efficiency were found. The effects of key factors in the preparation on the intrinsic viscosity of P(AM-DAC) were investigated, and the optimal synthesis condition was obtained. The results indicated that the highest intrinsic viscosity of P(AM-DAC) was reached at the molar ratio of AM to DAC of 3:2, the initiator concentration of 0. o2%, and ultrasonic time of 20 min and pH of 4. It was confirmed that
收稿日期：2016-12-18
基金项目：国家自然科学基金（21677020、51608078）
作者简介：唐晓是（1986-）.男，博士，主要从事水处理絮凝剂的开发与应用研究，（E-mail)txmno1@126.com。
郑怀礼（通信作者），男，教授，博士生导师，（E-mail)zhl6512@126.com，
Received:201612-18
Foundation item: National Natural Science Foundation of China (No. 21677020, 51608078)
Author brief:Tang Xiaomin (1986-), PhD, main research interest: preparation and application of flocculant, (E-mail)
txmnol@126.com.
Zheng Huaili (corresponding author), professor, doctoral supervisor, (E-mail)zhl6512@126. com.
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