University of Texas at Austin, Center for Energy and Environmental Resources, Austin, TX 78758, USA.
Water Sci Technol. 2010;61(3):619-24. doi: 10.2166/wst.2010.883.
The water and salt transport properties of chlorine tolerant disulfonated poly(arylene ether sulfone) (BPS) copolymers have been characterized. Cast BPS membranes of both salt form and acid form with sulfonation levels from 20% to 40% were investigated. Water permeability of BPS films increases more than one order of magnitude as sulfonation level increases from 20% to 40%, while the salt permeability of the corresponding membranes increases two orders of magnitude. Moderate salt rejection (98.2%) was achieved by a BPS salt form membrane with a sulfonation level of 20%.
已对耐氯的二磺化聚（芳基醚砜）（BPS）共聚物的水和盐传输性能进行了表征。研究了磺化度为 20%至 40%的盐型和酸型的 BPS 铸膜。当磺化度从 20%增加到 40%时，BPS 膜的水透过率增加了一个数量级以上，而相应膜的盐透过率则增加了两个数量级。BPS 盐型膜的磺化度为 20%时，可实现中等的盐截留率（98.2%）。
