| 高单体浓度下超低相对分子质量PAM的水溶液聚合 |
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| 引用本文： | 赵献增,王冬梅,朱靖,李天仚.高单体浓度下超低相对分子质量PAM的水溶液聚合[J].化学与粘合,2005,27(4):198-200. |
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| 作者姓名： | 赵献增 王冬梅 朱靖 李天仚 |
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| 作者单位： | 河南省精细化工重点实验室 河南郑州450002
(赵献增，王冬梅)，河南工业大学 河南郑州450052
(朱靖)，河南省精细化工重点实验室 河南郑州450002(李天仚) |
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| 基金项目： | 河南省自然科学基金项目(项目编号:0411020100)，河南省科技攻关项目(项目编号:0424270093) |
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| 摘 要： | 为合成高浓度水溶性胶黏剂,在高单体浓度下(40%),以过硫酸铵为引发剂,异丙醇为链转移剂,采用水溶液聚合法合成了超低相对分子质量聚丙烯酰胺。探讨了反应温度、链转移剂、引发剂等因素对聚合物相对分子质量的影响。EDTA能消除微量金属离子对相对分子质量波动的影响。在反应温度为80~90℃,引发剂浓度2~15×10-3mol/L,链转移剂浓度1~2.5mol/L时,所合成的聚丙烯酰胺相对分子质量为1.8~4.3×104。
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| 关 键 词： | 聚丙烯酰胺 低相对分子质量 水溶液聚合 链转移 |
| 文章编号： | 1001-0017(2005)04-0198-02 |
Polymerization of Acrylamide aqueous Solution with Super Low Molecular Weight under High Monomer Concentration |
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| ZHAO Xian-zeng,WANG Dong-mei,ZHU Jing and LI Tian-xian.Polymerization of Acrylamide aqueous Solution with Super Low Molecular Weight under High Monomer Concentration[J].Chemistry and Adhesion,2005,27(4):198-200. |
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| Authors: | ZHAO Xian-zeng WANG Dong-mei ZHU Jing and LI Tian-xian |
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| Affiliation: | ZHAO Xian-zeng~1,WANG Dong-mei~1,ZHU Jing~2 and LI Tian-xian~1 |
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| Abstract: | The polyacrylamide (PAM) with lower molecular weight was prepared by aqueous solution polymerization.The influence of reaction -temperature,amount of initiator and chain-transfer agent on molecular weight of PAM has been studied.EDTA can eliminate the effect of metal ion on molecular weight fluctuate.The polyacrylamide with molecular weight of(1.84.3)10~4 was prepared at 8090 when the concentration of initiator is 21510~3 mol/L and chain-transfer agent is 12.5 mol/L. |
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| Keywords: | polyacrylamide low molecular weight polymerization of aqueous solution chain-transfer |
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