| 摘要 |
A novel class of high temperature ion-containing poly(aromatic) polymers is disclosed. They are Poly(aryl amide(-CONH-), sulfonyl amide (-SO2NH-), imide((-CO-)2N-), imidazole ((-NH-)(-N=)C-), oxazoles ((-NH-)(-O-)C-), thiazoles ((-NH-)(-S-)C-), amino (-NH-) group, ether (-O-), sulfide (-S-), sulfone (-SO2-), or some combination of them) and they contain at least one type of ionic functional group selected from the following: (a) pendent ionic group: -Q-SO3(M), or -Q-SO2-N(M)-SO2-R, or -SO2-N(M)-SO2-R (b) linking ionic group: -SO2-N(M)-SO2--Q-SO2-N(M)-SO2--Q-SO2-N(M)-SO2-Q-wherein Q is a fluorinated alkylene or fluorinated alkoxylene group with carbon number from 1 to 12, and R is a fluorinated alkyl or fluorinated alkoxy group with carbon number from 1 to 12. M can be hydrogen H, lithium Li, sodium, Na, potassium K, and other suitable metal ions or organic bases. The new polymers can be random or blocked copolymers and can be crosslinked. The polymer can be made into polymeric membranes or composite membranes suitable for fuel cell, electrochemical applications, or selective permeable applications.
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