SULFONATED POLY(ARYLENE ETHER) COPOLYMER HAVING A CROSS-LINKABLE STRUCTURE, AND POLYELECTROLYTE MEMBRANE COMPRISING SAME

WIPO Patent Application WO/2012/008753

A2

The present invention relates to a sulfonated poly(arylene ether) copolymer having a cross-linkable structure, and to a polyelectrolyte membrane comprising same. More particularly, the present invention relates to a sulfonated poly(arylene ether) copolymer having a cross-linkable structure within or at the end of a polymer chain, and to a cross-linked polyelectrolyte membrane using the copolymer. The polyelectrolyte membrane using the sulfonated poly(arylene ether) copolymer having a cross-linkable structure according to the present invention is on the same or higher level than that of existing commercially available polyelectrolyte membranes in terms of thermal stability, mechanical stability, chemical stability, membrane-forming capability, etc. In addition, the polyelectrolyte membrane of the present invention is significantly improved as compared to existing polyelectrolyte membranes in terms of cation conductivity and cell performance, and shows no changes in the characteristics of the polyelectrolyte membrane, even after an exposure to moisture for a long period of time, thus exhibiting superior dimensional stability, and can be used in a fuel cell, secondary battery, or the like.

LEE JAE-SUK (KR)
KIM YOUNG JEA (KR)
SON HYO KYEONG (KR)
KIM DA YOUNG (KR)
KO UN (KR)

PCT/KR2011/005157

January 19, 2012

July 13, 2011

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KWANGJU INST SCI & TECH (KR)
LEE JAE-SUK (KR)
KIM YOUNG JEA (KR)
SON HYO KYEONG (KR)
KIM DA YOUNG (KR)
KO UN (KR)

C08G65/34; C08G61/12; C08G75/23; H01M8/10

KR100819332B1	2008-04-03
KR20090036999A	2009-04-15
EP2048182A1	2009-04-15
JP2003155347A	2003-05-27
US20070163951A1	2007-07-19

CHUNG HYUN PATENT & LAW FIRM (KR)
특허법인 충현 (KR)

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