Sulphonated multiblock copolymer and electrolyte membrane...

Details Sulphonated multiblock copolymer and electrolyte membrane... Sulphonated multiblock copolymer and electrolyte membrane...

2005-12-13

2009-10-13

Lipman, Bernard (Department: 1796)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C521S025000, C521S027000, C525S514000, C525S521000, C525S534000, C525S535000

Reexamination Certificate

active

07601785

ABSTRACT:
Disclosed is a sulfonated multiblock copolymer, which comprises a hydrophilic block (X) having a repeating unit represented by the following formula 1a, and a hydrophobic block (Y) having a repeating unit represented by the following formula 2, wherein the number (m) of the repeating unit of formula 1a in the hydrophilic block (X) and the number (n) of the repeating unit of formula 2 in the hydrophobic block (Y) satisfy the conditions of 4≦m≦400 and 4≧n≧400. An electrolyte membrane obtained from the sulfonated multiblock copolymer and a fuel cell using the electrolyte membrane are also disclosed:in-line-formulae description="In-line Formulae" end="lead"?Ar1—O—Ar2a—O  [Formula 1a]in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Ar1—O—Ar3—O  [Formula 2]in-line-formulae description="In-line Formulae" end="tail"?

REFERENCES:
patent: 4625000 (1986-11-01), Chao et al.
patent: 6586561 (2003-07-01), Litt et al.
patent: 7258941 (2007-08-01), Hirano et al.
patent: 2003/0044669 (2003-03-01), Hidaka et al.
patent: 2004/0101730 (2004-05-01), Hirano et al.
patent: 1 113 517 (2001-07-01), None
patent: 2003-147074 (2003-05-01), None
patent: 10-2002-0066264 (2002-08-01), None
patent: 10-2002-0076825 (2002-10-01), None
patent: 10-2003-0004097 (2003-01-01), None
patent: 10-2006-0019492 (2006-03-01), None
Miyatake, Kenji, et al.,Novel Sulfonated Poly(arylene ether):A Proton Conductive Polymer Electrolyte Designed for Fuel Cells, American Chemical Society, 2003, pp. 9691-9693.

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