A polymer with excellent mechanical properties and chemical properties was selected as the skeleton, and a crown ether instead of the traditional quaternary ammonium and quaternary phosphonium groups was introduced into the polymer. Three crosslinked crown ether membranes (PDB155P-HAH40, 50, and 60) with different crown ether contents were prepared and their structures and properties were characterized. The ionic conductivity of PDB155P-HAH 60 is 78.6 mS/cm at 90 °C. The degradation rates of ionic conductivity were only 2.5% and 0.99% after the membrane was soaked in 4 mol/L NaOH solution for 10 days and in 2 mol/L NaOH solution for 1000 h, respectively. The water uptake and swelling ratio of the membrane are relatively low, and the thermal stability and mechanical properties meet the requirements of the application. These membranes have great potential in the application.

选择具有优异机械性能和化学性能的聚合物作为骨架，并将冠醚代替传统的季铵和季phospho基团引入该聚合物中。制备了三种冠醚含量不同的交联冠醚膜（PDB155P-HAH40、50和60），并对其结构和性能进行了表征。PDB155P-HAH 60在90°C下的离子电导率为78.6 mS / cm。将膜分别在4 mol / L NaOH溶液中浸泡10天和在2 mol / L NaOH溶液中浸泡1000 h后，离子电导率的降解率分别仅为2.5％和0.99％。膜的吸水率和溶胀率较低，热稳定性和机械性能满足应用要求。