表面活性单体DMBAC光聚合动力学研究

doi:10.7517/j.issn.1674-0475.2009.05.351

影像科学与光化学 ›› 2009, Vol. 27 ›› Issue (5): 351-360.DOI: 10.7517/j.issn.1674-0475.2009.05.351

表面活性单体DMBAC光聚合动力学研究

李万刚^1,2, 王桂霞^1,2, 张玉玺¹, 李振泉³, 曹绪龙³, 宋新旺³, 吴飞鹏¹

1. 中国科学院, 理化技术研究所, 北京, 100190;
2. 中国科学院, 研究生院, 北京, 100049;
3. 中石化胜利油田分公司, 地质研究院, 山东, 东营, 257015

收稿日期:2009-04-02 修回日期:2009-05-11 出版日期:2009-09-23 发布日期:2009-09-23
通讯作者: 吴飞鹏

Kinetics Study of Photopolymerization of Surfactant Monomer (Surfmer) DMBAC

LI Wan-gang^1,2, WANG Gui-xia^1,2, ZHANG Yu-xi¹, LI Zhen-quan³, CAO Xu-long³, SONG Xin-wang³, WU Fei-peng¹

1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R.China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P.R.China;
3. Geological Scientific Research Institute of Shenli Oilfield Co.Ltd, SINOPEC, Dongying 257015, Shandong, P.R.China

Received:2009-04-02 Revised:2009-05-11 Online:2009-09-23 Published:2009-09-23

摘要/Abstract

摘要： 采用偶氮二异丁脒盐酸盐(AIBA)作为光引发剂,光引发聚合并研究了阳离子表面活性单体——甲基丙烯酰氧乙基二甲基苄基氯化铵(DMBAC)的均聚及其与丙烯酰胺(AM)共聚合反应的动力学行为,聚合反应均在高于DMBAC临界胶束浓度(CMC)的条件下进行.研究结果显示DMBAC均聚合反应速率与引发剂浓度的0.29次方以及单体浓度的0.89次方成正比,均聚合反应的表观活化能约为13.74 kJ/mo1;DMBAC与AM共聚合反应速率与引发剂浓度的0.82次方以及单体总浓度的0.83次方成正比,共聚合反应的表观活化能约为10.97 kJ/mo1;同时测得DMBAC与AM共聚合反应的单体竞聚率为r₁=0.27(AM)、r₂=2.00(DMBAC),说明AM趋向于形成共聚物,而DMBAC更趋向于形成均聚物.

关键词: 光聚合, 动力学, 表观活化能, 竞聚率, 胶体滴定法

Abstract: Kinetic behaviors of the homopolymerization of(N,N-Dimethyl-N-methacryloyl oxyethyl-N-benzyl)ammonium chloride(DMBAC) and the copolymerization between DMBAC and AM were studied.Polymerizations were carried out above the critical micelle concentration(CMC) of DMBAC,and the initiation process was carried out photochemically using 2,2’-Azobis(2-methylpropionamidine) dihydrochloride(AIBA)as a photoinitiator.The results indicate that the rate of the homopolymerization is proportional to the concentration of photoinitiator and monomer with exponents of 0.29 and 0.89,respectively,the apparent activation energy is about 13.74 kJ/mo1.The rate of copolymerization is proportional to the concentration of photoinitiator and monomers with exponents of 0.82 and 0.83,respectively,the apparent activation energy is about 10.97 kJ/mo1.The reactivity ratios of r₁ 0.27 for AM and r₂ 2.00 for DMBAC were also obtained,which suggests that AM prefers to form copolymers whereas DMBAC produces homopolymers.

Key words: photopolymerization, kinetics, apparent activation energy, reactivity ratio, colloid titration method

中图分类号:

李万刚, 王桂霞, 张玉玺, 李振泉, 曹绪龙, 宋新旺, 吴飞鹏. 表面活性单体DMBAC光聚合动力学研究[J]. 影像科学与光化学, 2009, 27(5): 351-360.

LI Wan-gang, WANG Gui-xia, ZHANG Yu-xi, LI Zhen-quan, CAO Xu-long, SONG Xin-wang, WU Fei-peng. Kinetics Study of Photopolymerization of Surfactant Monomer (Surfmer) DMBAC[J]. Imaging Science and Photochemistry, 2009, 27(5): 351-360.

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表面活性单体DMBAC光聚合动力学研究

Kinetics Study of Photopolymerization of Surfactant Monomer (Surfmer) DMBAC

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