| DMDAAC/DMC/IA三元共聚合动力学的研究 |
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| 引用本文： | 宋佳柠,朱明. DMDAAC/DMC/IA三元共聚合动力学的研究[J]. 化学试剂, 2017, 39(8). DOI: 10.13822/j.cnki.hxsj.2017.08.004 |
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| 作者姓名： | 宋佳柠 朱明 |
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| 作者单位： | 四川师范大学化学与材料科学学院四川教育厅特种废水处理工程实验室,四川成都,610068 |
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| 基金项目： | 四川省高校重点实验室开放资助项目，四川省教育厅成果转化重大培育资助项目 |
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| 摘 要： | 以二甲基二烯丙基氯化铵(DMDAAC)、甲基丙烯酰氧乙基三甲基氯化铵(DMC)和衣康酸(IA)为共聚合单体,以过硫酸钾-亚硫酸氢钠作氧化还原引发剂,采用膨胀计测定共聚合动力学速率方程和表观活化能,用红外光谱(FT-IR)、热失重分析(TGA)和差示热扫描(DSC)表征两性高分子絮凝剂p(DMDAAC-co-DMC-co-IA)。共聚合热力学计算表明,在T820.5 K的条件范围内,共聚合自由能变化ΔG0。结果显示,共聚合速率方程为Rp∝k[DMDAAC]1.43[DMC]1.36[IA]0.97[引发剂]1.5,表观活化能Ea=33.3 k J/mol。
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| 关 键 词： | 二甲基二烯丙基氯化铵 甲基丙烯酰氧乙基三甲基氯化铵 衣康酸 聚合动力学 |
Copolymerization Kinetics on DMDAAC/DMC/IA |
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| SONG Jia-ning,ZHU Ming. Copolymerization Kinetics on DMDAAC/DMC/IA[J]. Chemical Reagents, 2017, 39(8). DOI: 10.13822/j.cnki.hxsj.2017.08.004 |
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| Authors: | SONG Jia-ning ZHU Ming |
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| Abstract: | The copolymerization kinetics was investigated by dilatometer method on diallyl dimethyl ammoniumchloride,methacryloxyethyltrimethylammoniumchloride and itaconic acid in aqueous solution using potassium persulfate-sodium bisulfate redox complex initiator.The copolymerization rate equation and apparent activation energy were determined.The copolymerization products p(DMDAAC-co-DMC-co-IA) were confirmed by FT-IR,TGA and DSC.When the temperature was lower than 820.5 K,the copolymerization free energy △ G＜ 0.The polymerization rate equation is Rp ∞ k [DMDAAC] 1.43 [DMC] 1.36[IA] 0.97 [Initiator] 1.5,and the activation energy is 33.3 kJ/mol. |
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| Keywords: | diallyl dimethyl ammoniumchloride methacryloxyethyltrimethylammoniumchloride itaconic acid polymeric kinetics |
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