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Abstract
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.
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