| 超声波引发合成阳离子聚丙烯酰胺及其表征 |
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| 引用本文： | 唐晓旻,张世欣,谢俊怡,徐斌成,郑怀礼,冯力.超声波引发合成阳离子聚丙烯酰胺及其表征[J].土木建筑与环境工程,2017,39(4):83-88. |
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| 作者姓名： | 唐晓旻 张世欣 谢俊怡 徐斌成 郑怀礼 冯力 |
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| 作者单位： | 1. 重庆大学 城市建设与环境工程学院,重庆 400045;重庆市水处理混凝剂 工程技术研究中心,重庆 400045;2. 重庆市第一中学校,重庆,401331 |
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| 基金项目： | 国家自然科学基金，National Natural Science Foundation of China |
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| 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DAC的共聚物,具有-NH_2、C=O、-CH_2-N~+和-OH等活性基团。P(AM-DAC)在30~200℃范围内具有良好稳定性。
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| 关 键 词： | 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 |
| 收稿时间： | 2016/12/18 0:00:00 |
Ultrasonic initiated synthesis and characterization of cationic polyacrylamide |
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| Tang Xiaomin,Zhang Shixin,Xie Junyi,Xu Bincheng,Zheng Huaili and Feng Li.Ultrasonic initiated synthesis and characterization of cationic polyacrylamide[J].土木建筑与环境工程,2017,39(4):83-88. |
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| Authors: | Tang Xiaomin Zhang Shixin Xie Junyi Xu Bincheng Zheng Huaili and Feng Li |
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| Affiliation: | School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, P. R. China;Chongqing Engineering Research Center of Water Treatment Coagulant, Chongqing 400045, P. R. China,School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, P. R. China;Chongqing Engineering Research Center of Water Treatment Coagulant, Chongqing 400045, P. R. China,Chongqing No.1 Middle School, Chongqing 401331, P. R. China,School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, P. R. China;Chongqing Engineering Research Center of Water Treatment Coagulant, Chongqing 400045, P. R. China,School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, P. R. China;Chongqing Engineering Research Center of Water Treatment Coagulant, Chongqing 400045, P. R. China and School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, P. R. China;Chongqing Engineering Research Center of Water Treatment Coagulant, Chongqing 400045, P. R. China |
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| 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 0.02%, and ultrasonic time of 20 min and pH of 4.It was confirmed that P(AM-DAC) was the copolymer of AM and DAC, and the functional groups of-NH2, C=O,-CH2-N+ and-OH were found in it.P(AM-DAC) possessed the acceptable stability at the temperature range of 30 to 200 ℃. |
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| Keywords: | ultrasound cationic polyacrylamide acryloyloxyethyl trimethyl ammonium chloride coagulation |
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