| 两性聚酰胺-胺树状聚合物的合成及絮凝性能 |
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| 引用本文： | 彭晓春,彭晓宏,赵建青,徐美芸. 两性聚酰胺-胺树状聚合物的合成及絮凝性能[J]. 精细化工, 2007, 24(6): 596-599,611 |
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| 作者姓名： | 彭晓春 彭晓宏 赵建青 徐美芸 |
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| 作者单位： | 华南理工大学,材料科学与工程学院,广东,广州,510640;吉首大学,化学化工学院,湖南,吉首,416000;华南理工大学,材料科学与工程学院,广东,广州,510640 |
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| 摘 要： | 用Michael加成反应对G4.0聚酰胺-胺(PAMAM)树状聚合物分子进行了表面修饰改性。分别以丙烯酰氧基乙基三甲基氯化铵(DAC)、丙烯酸钠(SAA)、2-丙烯酰胺-2-甲基丙磺酸(AMPS)为端基改性剂,在N2气氛下50℃甲醇溶液中,反应投料比n(PAMAM)∶n(DAC)∶n(SAA或AMPS)=1∶16∶16时,反应96 h,合成出了两性聚酰胺-胺树状聚合物。絮凝性能实验结果表明,合成产物具有一定的絮凝性能,且与聚丙烯酰胺复配效果更好,最佳絮凝效果条件为:m(G4.0/DAC/AMPS)∶m(PAM)=1∶4;投药量16 mg/L;絮凝沉降时间20 min;pH=8~9。
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| 关 键 词： | 两性聚酰胺-胺 树状聚合物 絮凝效果 |
| 文章编号： | 1003-5214（2007）06-0596-05 |
| 修稿时间： | 2006-11-022007-03-23 |
Synthesis and Flocculation of Amphoteric Polyamidoamine Dendrimers |
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| PENG Xiao-chun,PENG Xiao-hong,ZHAO Jian-qing,XU Mei-yun. Synthesis and Flocculation of Amphoteric Polyamidoamine Dendrimers[J]. Fine Chemicals, 2007, 24(6): 596-599,611 |
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| Authors: | PENG Xiao-chun PENG Xiao-hong ZHAO Jian-qing XU Mei-yun |
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| Affiliation: | 1. College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China ;2. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, Hunan, China |
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| Abstract: | Generation 4.0 polyamidoamine(PAMAM) dendrimers were modified to amphoteric dendritic polymers using acryloyloxyethyl trimethylammonium chloride(DAC),sodium acrylic acid(SAA) and 2-acrylamido-2-methylpropanesulfonic acid(AMPS) as modifiers of terminal groups by Michael addition reaction.The reaction was carried out in methanol solution at 50 ℃ for 96 h under nitrogen,and monomer molar feed ratio n(PAMAM)∶n(DAC)∶n(SAA or AMPS)=1∶16∶16.The experiment exhibited that the modified dendrimers have flocculation,which could be improved by the synergistic effect of the dendrimers and polyacrylamide(PAM) to obtain excellent flocculating efficiency.The optimum conditions of flocculating efficiency were m(G4.0/DAC/AMPS)∶m(PAM)=1∶4;dosage 16 mg/L,sedimentation time 20 min and pH range 8～9. |
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| Keywords: | amphoteric polyamidoamine dendrimers flocculating efficiency |
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