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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,CC2*时,溶液粘度先快速增加,后缓慢增加,最后下降。
The critical association concentration of terpolymer hydrophobically associating polymer (acrylamide / octadecyldimethylallyl ammonium chloride / styrene) was studied and it was found that it had a two-critical association phenomenon as well as that in the second The rheological behavior of different temperature and salt resistance near the critical concentration of association. The results show that the first critical associative concentration (C1 *) of the hydrophobically associating polymer is 500 mg / L and the second critical associating concentration (C2 *) is 2400 mg / L. The temperature of the polymer solution near C2 * The performance of salt solution showed three different conditions: the solution viscosity decreased with the increase of salt concentration and the solution viscosity decreased with C C2 *, the viscosity of the solution rapidly increases first, then slowly increases, and finally decreases.