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一种水溶性疏水缔合聚合物二临界缔合行为研究
引用本文:吕鑫,岳湘安,景艳,郑焰.一种水溶性疏水缔合聚合物二临界缔合行为研究[J].化学通报,2005,68(10):793-796.
作者姓名:吕鑫  岳湘安  景艳  郑焰
作者单位:中国石油大学(北京)提高采收率研究中心;石油与天然气工程学院,北京,102249;西南石油学院化学化工学院,成都,610500
基金项目:油气藏地质与开发工程国家重点实验室开放基金项目(PLN0136)
摘    要:对三元共聚疏水缔合聚合物(丙烯酰胺/十八烷基二甲基烯丙基氯化铵/苯乙烯)的临界缔合浓度进行研究,发现其具有二临界缔合现象以及其在二临界缔合浓度附近不同的耐温抗盐的流变行为。研究结果表明,该疏水缔合聚合物的第一临界缔合浓度(C1^*)为500mg/L,第二临界缔合浓度(C2^*)为2400mg/L;C2^*附近聚合物溶液的耐温性能较差;抗盐性能表现出三种不同的情况:随着盐质量浓度的增加,C〈C1^*时,溶液粘度下降;C1^*〈C〈C2^*时,溶液粘度先增加后下降;C〉C2^*时,溶液粘度先快速增加,后缓慢增加,最后下降。

关 键 词:疏水缔合聚合物  聚丙烯酰胺  临界缔合浓度
收稿时间:2004-12-20
修稿时间:2004-12-202005-04-11

Research on Two Critical Concentrations Behavior of a Hydrophobic Associating Copolymer
Lv Xin;Yue XiangAn;Jing Yan;Zheng Yan.Research on Two Critical Concentrations Behavior of a Hydrophobic Associating Copolymer[J].Chemistry,2005,68(10):793-796.
Authors:Lv Xin;Yue XiangAn;Jing Yan;Zheng Yan
Abstract:This research finds that the hydrophobic associating water-soluble copolymer of poly-acylamide/actodeci alkyl dimethyl allyl ammonium chloride/styrene has two critical concentrations at which there are different behavior of temperature resistance and salt tolerance. The first critical associating concentration (C*_1)is 500mg/L, the second critical associating concentration (C*_2) is 2400mg/L. When the concentration of solution polymer is near C*_2, the performance of temperature tolerance is low. With the concentration of salt increasing, the influence of salt behaves three different status: when CC*_2, the viscosity firstly increases rapidly, then increases slowly, and decreases in the end.
Keywords:Hydrophobic associating water-soluble polymer  Poly-acrylamide  Critical associating concentration
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