季膦化聚砜和季胺化聚砜共混阴离子交换膜的制备与表征

Study on preparation and properties of quaternary phosphonium polysulfone blending with quaternary ammonium polysulfone anion exchange membrane

摘要:

以聚砜为基材制备阴离子导电膜材料。将季膦化聚砜筑膜液与已证实成膜性能良好的季铵化聚砜共混，制备阴离子交换共混膜QAPSFOH/QPPSFOH，以改善季膦化聚砜成膜困难问题。通过改变两种成分比例，可以得到不同性能的阴离子交换膜。在QAPSF:QPPSF摩尔比为1:2时，共混膜电导率达0.0309 S/cm，拉伸强度达775 MPa，热分解温度达160℃，满足理论对阴离子交换膜的需要。

Abstract:

The anionic conducting membrane material was prepared based on polysulfone in this work. Casting solution of quaternary phosphonium PSF blended with quaternary ammonium polysulfone which exhibits excellent mechanical properties to prepare of a novel kind of anion exchange membrane QAPSFOH / QPPSFOH. The blend membrane can improve the difficult question of quaternary phosphonium PSF to form a membrane. By changing the ratio of the two components can obtain different performance anion exchange membranes. When QAPSF: QPPSF material mol ratio of 1:2, the conductivity of the blend membrane was up to 0.0309 S/cm, tensile strength was up to 775 MPa, thermal decomposition temperature can reach 160℃. The anion exchange membrane have been met the requirements of the theory.