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| 阳离子型共聚物AM/DMBAC疏水微嵌段结构的分析 | |
| 引用本文： | 王桂霞,李万刚,张玉玺,李振泉,宋新旺,曹绪龙,吴飞鹏.阳离子型共聚物AM/DMBAC疏水微嵌段结构的分析[J].高分子学报,2010,0(4):435-441. |
| 作者姓名： | 王桂霞 李万刚 张玉玺 李振泉 宋新旺 曹绪龙 吴飞鹏 |
| 作者单位： | 1. 中国科学院理化技术研究所新型功能聚合物材料研究组,北京,100190;中国科学院研究生院,北京,100049 2. 中国科学院理化技术研究所新型功能聚合物材料研究组,北京,100190 3. 中石化胜利油田分公司地质科学研究院,东营,257015 |
| 摘 要： | 利用表面张力法对甲基丙烯酰氧乙基二甲基苄基氯化铵(简称DMBAC)在水溶液中的表面活性进行了测试并确定了其CMC值.研究了丙烯酰胺(AM)和DMBAC在水溶液中的共聚合反应行为,测定了AM与DMBAC共聚反应的竞聚率;IR,1H-NMR对共聚物的结构进行了表征;13C-NMR和DSC分析了单体DMBAC浓度对共聚产物微结构的影响;芘作为荧光探针测定了共聚物水溶液的疏水缔合性质.实验结果表明当共聚单体DMBAC浓度大于CMC时DMBAC倾向于均聚,DMBAC在共聚产物主链上呈微嵌段的形式分布.当共聚单体DMBAC浓度小于CMC时,DMBAC与AM倾向于无规共聚. |
| 关 键 词： | 阳离子型共聚物 竞聚率 疏水缔合作用 微嵌段 序列结构 |
| 收稿时间： | 2009-04-20 |
STUDIES ON MICROBLOCK STRUCTURE OF AM/DMBAC CATIONIC COPOLYMERS |
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| WANG Guixia,LI Wangang,ZHANG Yuxi,LI Zhenquan,SONG Xinwang,CAO Xulong,WU Feipeng.STUDIES ON MICROBLOCK STRUCTURE OF AM/DMBAC CATIONIC COPOLYMERS[J].Acta Polymerica Sinica,2010,0(4):435-441. | |
| Authors: | WANG Guixia LI Wangang ZHANG Yuxi LI Zhenquan SONG Xinwang CAO Xulong WU Feipeng |
| Institution: | 1 Technical Institute of Physics and Chemistry;Laboratory of Functional Polymer;Chinese Academy of Sciences;Beijing 100190;2 Graduate University of Chinese Academy of Sciences;Beijing 100049;3 Geological Scientific Research Institute;Shengli Petroleum Administrative Bureau;Sinopec Corp;Dongying 257015 |
| Abstract: | The surface activity of cationic DMBAC ( dimethyl methacryloyloxyethyl benzyl ammonium chloride) was revealed by measuring surface tension and estimating of critical micelle concentration ( CMC). The copolymerization of acrylamide ( AM) and DMBAC was studied in aqueous solution at above and below CMC of DMBAC,respectively. The reactivity ratios r1 and r2 were determined by the Fineman-Ross method. IR and 1H-NMR spectra afford information about polymer structure. The compositions of copolymers were calculate... |
| Keywords: | Cationic copolymer Reactivity ratio Hydrophobic association Microblock Sequence |
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