PPE的化学改性及在离子交换膜中的应用

Chemical Modification of Polyphenylene Oxide and Its Application in Ion Exchange Membrane

介绍了聚苯醚(PPE)在化学改性方面的研究进展,简述了各种封端剂对低分子量PPE进行封端改性,重点描述了使用溴化、磺化等对PPE功能化改性,指出了目前将PPE由热塑性树脂向热固性树脂改性的发展方向,并对改性的PPE在阴离子交换膜中的应用进行了总结,得出了控制好吸水率、离子交换能力与力学性能的平衡是制备阴离子膜的关键。分析表明,提高耐碱性是今后制备阳离子交换膜的工作重点,对PPE在两种离子交换膜的应用进行展望。

The research progress of chemical modification of engineering plastics polyphenylene oxide(PPE)was introduced,and the modification of low molecular weight PPE by various end sealers was briefly introduced.The functional modification of PPE by bromination and sulfonation was described emphatically,and the development direction of modification of PPE from thermoplastic resin to thermosetting resin was pointed out.And the modified PPE in the application of anion exchange membrane were summarized,the control was obtained good water absorption,ion exchange capacity and mechanical properties of balance was the key to the preparation of anion membrane and analysis show that raising alkali resistance is a focus in the preparation of cationic exchange membrane in the future,for PPE in two kinds of the application of ion exchange membrane is discussed.