Polyarylether composition and membrane

Details Polyarylether composition and membrane Polyarylether composition and membrane

2008-07-31

2010-11-09

Gulakowski, Randy (Department: 1796)

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

Synthetic resins

From ketone or ketene reactant

C528S373000, C528S391000

Reexamination Certificate

active

07829652

ABSTRACT:
A composition including a polyarylether copolymer is provided. The copolymer includes a polyarylether backbone; and a sulfonated oligomeric group bonded to the polyarylether suitable for use as a cation conducting membrane. Method of bonding a sulfonated oligomeric group to the polyarylether backbone to form a polyarylether copolymer. The membrane may be formed from the polyarylether copolymer composition. The chain length of the sulfonated oligomeric group may be controlled to affect or control the ion conductivity of the membrane.

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patent: 2007/0142614 (2007-06-01), Hung et al.
Dae Sik Kim, Gilles P. Robertson, and Michael D. Guiver, “Comb-Shaped Poly(Arylene Ether Sulfone)s as Proton Exchange Membranes”; Institute for Chemical Process and Environmental Technology, National Research Council, 1200 Montreal Road, Ottawa, Ontario K1A 0R6, Canada; Web Release Date: Feb. 23, 2008; Macromolecules, 41 (6), 2126-2134, 2008.

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