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通过对嵌段聚合物 PE62 0 0和 2 5R4有机溶液的加溶水量 WO 与温度关系的实验 ,确定了不同温度下反胶团形成的临界浓度 ( CMC) ,分析了聚合物在对二甲苯中形成反胶团的热力学行为 .结果表明 ,提高温度 ,有利于对二甲苯对聚合物的溶解 ,导致 CMC值上升 .ln XCMC与温度 T成线性关系 ,胶团化过程中体系的标准吉布斯自由能变、焓变和熵变皆为负值 ,表明该过程是一个自发的放热过程 ,并且是一个混乱度降低的熵减过程 .
The critical concentration (CMC) of the reverse micelles formed at different temperatures was determined by experiments on the relationship between the amount of dissolved water WO and the temperature of the PE62 0 0 and 2 5R4 organic polymers. The effects of polymer concentration in p-xylene The formation of reverse micelles thermodynamic behavior.The results show that increasing the temperature is conducive to p-xylene polymer dissolved, resulting in CMC value.ln XCMC and temperature T into a linear relationship between the system during the micelle of the standard Gibbs Free energy change, enthalpy change and entropy change are all negative, indicating that the process is a spontaneous exothermic process, and is a process of entropy reduction with reduced confusion.