The slightly crosslinked poly(N-allylisatin biphenyl)-co-poly(alkylene biphenyl)s (PIB-co-PAB) based anion exchange membranes are prepared by super-acid catalyst polycondensation and thiol-ene click chemistry in situ. The hydrophilic crosslinked structure improves the hydroxide conductivity due to enhanced the water uptake and well-developed microphase separation. Furthermore, the introduction of N-spirocyclic quaternization ammonium groups promotes the chemical stability of the prepared membranes. Among them, the crosslinked PIB-co-PAB membrane with high ion exchange capacity exhibit high ion conductivity of 24.7 and 39.1 mS·cm⁻¹ at 30 °C for chloride and hydroxide ionic conduction, respectively. Moreover, it possesses an acceptable alkaline stability, which remains the 65.19% of original hydroxide conductivity after storage in 1 M NaOH solution at 80 °C for 1000 h. Meanwhile, the crosslinked membranes exhibit lower permeability for borohydride anion than un-crosslinked membranes. Additionally, the peak power density of direct borohydride/hydrogen peroxide fuel cells using the crosslinked membrane as separator is 76.1 mW·cm⁻² at 149.2 mA·cm⁻², which is higher than un-crosslinked membranes (17.3 mW·cm⁻² at 48.2 mA·cm⁻²) Therefore, all the results reveal that the prepared free aryl-ether bonds linkage membranes with hydrophilic crosslinked structure provide potential application in fuel cells.

通过超酸催化剂的缩聚反应和原位硫醇-烯点击化学制备了略交联的聚（N-烯丙基赖氨酸联苯）-共-聚（亚烷基联苯）（PIB- co- PAB）基阴离子交换膜。亲水性交联结构由于提高了吸水率和完善的微相分离而提高了氢氧化物的电导率。此外，N-螺环季铵化铵基团的引入促进了所制备膜的化学稳定性。其中，具有高离子交换容量的交联PIB- co- PAB膜具有24.7和39.1mS·cm ^-1的高离子电导率。在30°C下分别进行氯离子和氢氧化物离子传导。此外，它具有可接受的碱稳定性，在80°C的1 M NaOH溶液中存储1000小时后，仍保持原始氢氧化物电导率的65.19％。同时，交联的膜表现出的硼氢化物阴离子渗透性比未交联的膜低。另外，使用交联膜作为隔板的直接氢硼化氢/过氧化氢燃料电池的峰值功率密度在149.2mA ·cm ^-2时为76.1mW·cm ^-2，比未交联的膜（17.3mW·cm ^-2）高。在48.2 mA·cm ^-2时因此，所有结果表明，所制备的具有亲水性交联结构的游离芳基-醚键连接膜具有潜在的应用前景。