一类含烷基磺酸根的表面活性单体及其聚合物的合成及性能研究
Chemistry（2022）
Abstract
针对疏水缔合聚合物水溶性不足的问题,本文合成了三种含烷基磺酸根的阴离子型表面活性单体2-丙烯酰胺基辛烷基磺酸钠(NaAMC8S)、2-丙烯酰胺基十二烷基磺酸钠(NaAMC12S)和2-丙烯酰胺基十八烷基磺酸钠(NaAMC18S),通过氢谱、碳谱、高分辨质谱对其结构进行了表征.通过表面张力法和电导率法测定了 NaAMC8S和NaAMC12S的临界胶束浓度;用荧光探针技术研究了其增溶作用;以偶氮二异丁脒盐酸盐(AIBA)为引发剂,在水溶液中研究了丙烯酰胺(AM)分别与NaAMC8S、NaAMC12S的二元共聚反应,通过控制AM 与 NaAMC8S、NaAMC12S 的投料比制备得到两个系列聚合物 P(AM/NaAMC8S)、P(AM/NaAMC12S),研究了表面活性单体含量对聚合物疏水缔合作用及耐温抗盐性能的影响.实验结果表明,NaAMC8S、NaAMC12S具有良好的表面活性和增溶作用,聚合物P(AM/NaAMC8S)、P(AM/NaAMC12S)具有显著的疏水缔合作用,P(AM/NaAMC12S)的耐温抗盐性能明显优于用AM和商用单体2-丙烯酰胺-2-甲基丙磺酸钠(NaAMPS)共聚制备的聚合物P(AM/NaAMPS).
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