互贯磺酸树脂的离子交换平衡性质

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。

PHYSICOCHEMICAL PROPERTIES OF INTERPENETRATING SULFONATED POLYSTYRENE RESINS

The thermodynamic properties of a series of sulfonate resins with interpenetrating polymer networks (SRIPN) were studied and the ΔG0, ΔH0, ΔS0, of ion exchange reactions for SRIPN which have various degree of crosslinking and various weight ratio between two networks of beads were measured. The interrelation between the thermodynamic properties and structure of SBIPN was generalized. Through the study of the relation between water regain and equivalent fraction of the replacing ion on resin phase the concept o'f integral water regain (I'WK) has been put forward. When SRIPN was applied to the ion elution chromatography of KC1, NaCl, CaCl2, MgCl2 mixture, the efficiency of separation was far better than that with SGSR.