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本文研究凝胶型互贯磺酸树脂的热力学性质。测定了一系列第一网和第二网重量比及交联度不同的互贯磺酸树脂对多种离子交换反应的△G~0、△H~0和△S~0值。归纳了二重网重量比和交联度对△H~0、△S~0值变化影响规律。提出了用积分持水量来表达互贯磺酸树脂的平衡常数与持水量关系,并探讨了这类树脂在离子交换色谱等方面应用的可能性。
This article studies the thermodynamic properties of gel-type inter-permeable sulfonic acid resins. A series of IPG ~ 0, △ H ~ 0 and △ S ~ 0 values for a variety of ion exchange reactions were determined for a series of interpenetrating sulfonic acid resins with different weight ratios and degrees of crosslinking. The effects of weight ratio of double network and degree of crosslinking on △ H ~ 0 and △ S ~ 0 values were summarized. The relationship between the equilibrium constant and the water holding capacity of intercrosssoluble sulfonic acid (PSA) resin was proposed by using integral water holding capacity. The possibility of using these resins in ion exchange chromatography was also discussed.