Heterocycle grafted monomers and related polymers and hybrid...

Details Heterocycle grafted monomers and related polymers and hybrid... Heterocycle grafted monomers and related polymers and hybrid...

2005-01-26

2009-08-18

Cheung, William K (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S266000

Reexamination Certificate

active

07576165

ABSTRACT:
Polymers, polymer precursors, and other materials are described, having at least one heterocycle and being useful for fabrication of proton-exchange membranes (PEMs). In representative examples, the heterocycle is a fluorinated imidazole ring. The heterocycle can be chosen to have a low value of pKa, and may be a triazole ring, other nitrogen-containing heterocycle, or derivative thereof. Polymers and composites were prepared having excellent proton conductivity. Applications of these materials include fuel cells and other ion-conducting applications.

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