疏水缔合型阳离子聚丙烯酰胺的合成及絮凝性能

doi:10.13218/j.cnki.csdc.2017.07.004

日用化学工业 ›› 2017, Vol. 47 ›› Issue (7): 374-378.doi: 10.13218/j.cnki.csdc.2017.07.004

疏水缔合型阳离子聚丙烯酰胺的合成及絮凝性能

郭睿, 王映月, 郭煜

陕西科技大学轻化工助剂化学与技术教育部重点实验室,陕西西安 710021

收稿日期:2017-03-13 发布日期:2019-03-20
通讯作者: 王映月,电话:18710778069,E-mail:823876722@qq.com。
作者简介:郭睿(1959-),男,陕西咸阳人,教授,E-mail:gr304@163.com。
基金资助:
陕西省科技统筹创新工程计划资助项目(2014KTCL01-11)

Synthesis and flocculation performance of hydrophobically associating cationic polyacrylamide

GUO Rui, WANG Ying-yue, GUO Yu

Key Laboratory of Auxiliary Chemistry and Technology in Light Industry,Ministry of Education,Shaanxi University of Science and Technology,Xi'an,Shaanxi 710021,China

Received:2017-03-13 Published:2019-03-20

摘要/Abstract

摘要： 以甲基丙烯酸三氟乙酯(TFEMA)为疏水单体、丙烯酰胺(AM)为主单体、甲基丙烯酰氧乙基三甲基氯化铵(DMC)为阳离子单体,以过硫酸铵和亚硫酸氢钠为复合引发剂,采用自由基胶束聚合法合成了共聚物P(AM-DMC-TFEMA)。分别考察了反应温度、引发剂用量、单体总质量分数及反应时间对P(AM-DMC-TFEMA)的产率及阳离子度的影响。确定较佳工艺条件为:反应温度65 ℃,引发剂用量占单体总质量的2%,单体总质量分数26%,反应时间3 h。采用红外光谱(FT-IR)、核磁共振氢谱(¹H NMR)和环境扫描电镜(ESEM)对其结构进行了表征。同时考察了P(AM-DMC-TFEMA)对硅藻土悬浮液的絮凝效果,结果表明,其对硅藻土具有良好的絮凝效果,絮凝时间仅为20 s,合成的共聚物上清液透过率为97.31%。

关键词: 阳离子聚丙烯酰胺, 疏水改性, 自由基胶束聚合, 絮凝

Abstract: With trifluoroethyl methacrylate (TFEMA) as the hydrophobic monomer,acrylamide (AM) as main monomer,methacryloxyethyltrimethylammonium chloride (DMC) as cationic monomer,ammonium persulfate and sodium bisulfite as composite initiator,the product copolymer P(AM-DMC-TFEMA) was synthesized using free radical micellar copolymerization method.Effects of reaction temperature,initiator dosage,mass fraction of total monomers and reaction time on the yield and level of cationization of P(AM-DMC-TFEMA) were examined.Better process conditions are suggested as following:reaction temperature,65 ℃;dosage of initiator,2% of total mass of the monomers;mass fraction of total monomers,26%;reaction time,3 h.The structure of the product was characterized by infrared spectroscopy (FT-IR),¹H nuclear magnetic resonance (¹H NMR) and environmental scanning electron microscopy (ESEM).Meanwhile,the flocculation effect of the product P(AM-DMC-TFEMA) on diatomaceous earth suspension was also examined.Results show that P(AM-DMC-TFEMA) displays good flocculation effect on diatomaceous earth,the flocculation time is only 20 s,and the ratio of the clear copolymer product liquid achieves 97.31%.

Key words: cationic polyacrylamide, hydrophobic modification, free radical micellar copolymerization, flocculation

中图分类号:

TQ314.253

郭睿, 王映月, 郭煜. 疏水缔合型阳离子聚丙烯酰胺的合成及絮凝性能[J]. 日用化学工业, 2017, 47(7): 374-378.

GUO Rui, WANG Ying-yue, GUO Yu. Synthesis and flocculation performance of hydrophobically associating cationic polyacrylamide[J]. China Surfactant Detergent & Cosmetics, 2017, 47(7): 374-378.

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疏水缔合型阳离子聚丙烯酰胺的合成及絮凝性能

Synthesis and flocculation performance of hydrophobically associating cationic polyacrylamide

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