Fabrication and Characterization of Polyphosphazene-Based Exchange Membranes

9632079 Peter Pintauro Tulane大学摘要该项目涉及以烷基苯氧基和烷基苯氧基/苯氧基取代聚磷烯为原料制备交联化和磺化阳离子交换膜。磷腈聚合物具有良好的化学和热稳定性，并且易于通过在-P=N-主链上添加不同的侧链来修饰聚合物，因此有望成为新型膜的基础材料。将对所得膜的化学和机械性能进行表征。膜的化学成分、离子交换容量和交联度将有所不同。这种膜的潜在应用包括电渗析和超滤，以及固体聚合物电解质燃料电池。

CTS - 9632079 Peter Pintauro Tulane University ABSTRACT The project involves the fabrication of crosslinked and sulfonated cation-exchange membranes from alkylphenoxy- and alkylphenoxy/phenoxy-substituted polyphospazenes. Phosphazene polymers are promising base-materials for new membranes due to their chemical and thermal stability and the ease of modifying the polymer by adding different side-chains onto the -P=N- Backbone. The chemical and mechanical properties of the resulting membranes will be characterized. The membranes will differ in chemical composition, ion-exchange capacity, and degree of crosslinking. Potential applications of the membranes include electrodialysis and ultrafiltration, as well as solid polymer electrolyte fuel cells.