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研究了预辐照F_(4σ)薄膜同甲基丙烯酸-二乙烯基苯水溶液体系的接枝共聚。电子预辐照剂量为(3～8)×10~5rad,接枝温度为80°～95℃,接枝时间随温度和剂量而定。 为了确定单体水溶液的合理配方,进行了甲基丙烯酸-二乙烯基苯-水三元体系的相图研究。 由所得接枝物可制备电化学性能优良、机械强度高的离子交换膜。其主要性能如下:交换容量:2～3meq/g,比电阻:50～100Ω-cm,选择透过性:95～98％,抗拉强度:≥160kg/cm~2。
The graft copolymerization of pre-irradiated F_ (4σ) film with methacrylic acid-divinylbenzene aqueous solution was studied. Electron pre-irradiation dose (3 ~ 8) × 10 ~ 5rad, grafting temperature of 80 ° ~ 95 ℃, grafting time with the temperature and dose may be. In order to determine the reasonable formulation of aqueous monomer solution, the phase diagram of methacrylic acid-divinylbenzene-water ternary system was studied. From the resulting graft copolymer, an ion exchange membrane with excellent electrochemical performance and high mechanical strength can be prepared. Its main properties are as follows: exchange capacity: 2 ~ 3meq / g, specific resistance: 50 ~ 100Ω-cm, the choice of permeability: 95 ~ 98%, tensile strength: ≥ 160kg / cm ~