| 低分子量聚丙烯酰胺的水溶液聚合 |
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| 引用本文： | 王冬梅,张彦昌,李天俞,曹金丽,牛宸东. 低分子量聚丙烯酰胺的水溶液聚合[J]. 河南科学, 2013, 0(10): 1604-1606 |
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| 作者姓名： | 王冬梅 张彦昌 李天俞 曹金丽 牛宸东 |
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| 作者单位： | [1]河南省科学院高新技术研究中心,郑州450002 [2]多伦多大学材料工程专业,加拿大多伦多M5S1A4 |
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| 基金项目： | 河南省杰出人才基金项目（114200520020） |
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| 摘 要： | 采用含少量溶剂的水溶液聚合法合成分子量为（20。40）x104的低分子量聚丙烯酰胺（PAM）．以丙酮为移热剂和链转移剂，过硫酸铵为引发剂，探讨了溶剂、引发剂、反应温度及反应时间对聚合物分子量的影响．在单体质量分数为15％，引发剂浓度为（2．34—8．04）x10-3mol／L，移热溶剂为（0．37—1．23）~10-3mol／L，反应温度为84—92℃，滴加时间1．5h，保温时间1．5h的条件下，获得分子量在（20-40）×104的聚丙烯酰胺．
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| 关 键 词： | 低分子量 聚丙烯酰胺 链转移 水溶液聚合 |
The Aqueous Solution Polymerization of Acrylamide with Low Molecular Weight |
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| Wang Dongmeil,Zhang Yanchang,Li Tianxian,Cao Jinlil,Niu Chendong. The Aqueous Solution Polymerization of Acrylamide with Low Molecular Weight[J]. Henan Science, 2013, 0(10): 1604-1606 |
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| Authors: | Wang Dongmeil Zhang Yanchang Li Tianxian Cao Jinlil Niu Chendong |
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| Affiliation: | 2 (1. High and New Technology Research Center, Henan Academy of Sciences, Zhengzhou, 450002, China; 2. Material Engineering, University of Toronto, Toronto M5S1A4, Ontario Canada.) |
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| Abstract: | The polyacrylamide with low molecular weight was prepared by aqueous solution polymenzauon containing a small quantity of organic solvent. Acetone as chain-transfer agent and ammonia persulfate as initiator, the influence on molecular weight of polyacrylamide of amount of solvent, initiator and chain-transfer agent has been studied. The polyaerylamide with molecular weight of （2.0-4.0）xl0s was derived under determined condition： total monomers mass fraction （based on the reaction system） =15%, initiator concentration= （2.34~8.04） xl0-3 mol/L, the amount of solvent= （0.37-1.23）~10-3 tool/L, reaction temperature=84-92 ~C, droping time=l.5 h. |
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| Keywords: | low molecular weight polyacrylamide： chain-transfer polymerization of aqueous solution |
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