Anion-conducting polymer, composition, and membrane

Details Anion-conducting polymer, composition, and membrane Anion-conducting polymer, composition, and membrane

2006-03-22

2008-10-21

Truong, Duc (Department: 1796)

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

Synthetic resins

Ion-exchange polymer or process of preparing

C521S027000, C528S086000, C528S167000, C528S168000, C528S169000, C528S373000, C528S397000, C528S398000, C528S399000

Reexamination Certificate

active

07439275

ABSTRACT:
Anion-conducing polymers and membranes with enhanced stability to aqueous alkali include a polymer backbone with attached sulfonium, phosphazenium, phosphazene, and guanidinium residues. Compositions also with enhanced stability to aqueous alkali include a support embedded with sulfonium, phosphazenium, and guanidinium salts.

REFERENCES:
Neagu et al., “Ionic Polymers VI. Chemical Stability of Strong Base Anion Exchangers in Aggressive Media,” Polymer Degradation and Stability, vol. 70, Dec. 2000, pp. 463-468.
Varcoe et al., “Prospects for Alkaline Anion-Exchange Membranes In Low Temperature Fuel Cells,” Fuel Cells, vol. 4, No. 4, Dec. 2004, pp. 1-14.
Becker et al., “New Organic Electrolytes: Tris(dialkylamino)sulfonium salts: (R2N)3S+X−,” Journal of Electroanalytical Chem., vol. 248, Jul. 1988, pp. 363-368.
Hartmann et al., “Chrystal Chemistry of Uncharged Phosphazene Bases,I. Structures of Two Hydrates and Acetate of Tris(dimethylamino)methyliminophosphorane,” Zeitschrift fur Naturforschung Section B, 51b, Oct. 1996, pp. 1369-1374.
Hartmann et al., “Crystal Chemistry of Uncharged Phosphazene Bases, II. Structures of the Anhydrous Form and Two Hydrates of the Diphosphazene (Me(2)N)(3)P=N-(Me(2)N)(2)P=NH,” Zeitschrift fur Naturforschung Section B, 51b, Oct. 1996, p. 1375-1380.
Zhou et al., “High Temperature Transport Properties of Polyphosphazene Membranes for Direct Methanol Fuel Cells,” Electrochim. Acta 48, Jun. 2003, pp. 2173-2180.
Schwesinger et al., “Extremely Strong, Uncharged Auxiliary Bases; Monomeric and Polymer-Supported Polyaminophosphazenes (P-2-P-5),” Liebigs Annalen, Jul. 1996, vol. 7, pp. 1005-1081.

Affiliated with

Also associated with

Rating

Anion-conducting polymer, composition, and membrane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anion-conducting polymer, composition, and membrane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anion-conducting polymer, composition, and membrane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3997922