Radiation-induced grafted ion exchange membranes based on functionalized polystyrene were tested for the first time in reverse electrodialysis (RED). Сation and anion exchange membranes based on sulfonated and quaternized/chloromethylated poly(styrene-co-divinylbenzene) grafted on UV-oxidized polymethylpentene films with different conductivity and selectivity relationships were compared with each other and with different commercial ion-exchange membranes (IEMs), FujiFim® Type 1 and Type 2 and RALEX®. The synthesized grafted membranes provided the highest power density of lab-scale stacks with a total active membrane area of 72 cm² with the use of 0.1 М/1 М NaCl (0.67 W m⁻²) and 0.1 М/5 М NaCl (2.1 W m⁻²) solutions. The use of grafted membranes with a low resistance ~0.5 Ω cm² (0.5 М NaCl, 25 °C) did not benefit the stack resistance; the low selectivity of such membranes resulted in a lower voltage and a high non-selective diffusion current of the RED stack. Higher power densities and current efficiencies in some model systems are observed for stacks with grafted membranes with lower conductivity and higher selectivity.

基于功能化聚苯乙烯的辐射诱导接枝离子交换膜首次在反向电渗析 (RED) 中进行了测试。将基于磺化和季铵化/氯甲基化聚（苯乙烯-共-二乙烯基苯）接枝在具有不同电导率和选择性关系的紫外线氧化聚甲基戊烯薄膜上的阳离子和阴离子交换膜相互比较，并与不同的商业离子交换膜（IEM）进行比较， FujiFim® 1 型和 2 型以及 RALEX®。将合成的接枝膜为72厘米的总有效膜面积提供的实验室规模的堆的最高功率密度²与使用0.1М/ 1М的NaCl（0.67脉冲W M ^-2）和0.1М/ 5М的NaCl（2.1 Wm ^-2) 解决方案。使用具有低电阻 ~0.5 Ω cm ² (0.5 М NaCl, 25 °C)的接枝膜对堆电阻没有好处；这种膜的低选择性导致 RED 堆栈的电压较低和非选择性扩散电流较高。对于具有较低电导率和较高选择性的接枝膜的堆叠，在某些模型系统中观察到较高的功率密度和电流效率。