Title:
NOVEL SULFONATED CONJUGATED TETRAPHENYLETHYLENE POLYIMIDES, AND PROTON EXCHANGE MEMBRANE FOR FUEL CELL USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/154238
Kind Code:
A1
Abstract:
The present invention relates to novel sulfonated conjugated tetraphenylethylene polyimides (SCTPPIs) obtained by synthesizing sulfonated diamine through one-step polycondensation polymerization, and to a method for preparing same, as well as to a proton exchange membrane using the SCTPPIs, and to a polymer electrolyte fuel cell using the proton exchange membrane as an electrolyte. The SCTPPIs according to the present invention may exhibit an ion-exchange capacity (IEC) and water uptake (WU) equal to commercial Nafion, and may have superior thermal stability and better dimensional stability, and therefore can be effectively used as an electrolyte membrane for a fuel cell.
Inventors:
KIM WHAN GI (KR)
SEO DONG WAN (KR)
LIM YOUNG DON (KR)
JANG HO HYOUN (KR)
LEE HYUN CHEL (KR)
LEE SOON HO (KR)
SEO DONG WAN (KR)
LIM YOUNG DON (KR)
JANG HO HYOUN (KR)
LEE HYUN CHEL (KR)
LEE SOON HO (KR)
Application Number:
PCT/KR2012/008711
Publication Date:
October 17, 2013
Filing Date:
October 23, 2012
Export Citation:
Assignee:
UNIV KONKUK IND COOP CORP (KR)
International Classes:
C07C309/45; C08G73/10; H01M8/02; H01M8/10
Other References:
SEO, D. W. ET AL.: "Synthesis and properties of sulfonated conjugated tetraphenylethylene polyimides for proton exchange membranes in fuel cells", HYPOTHESIS IX, 12 December 2011 (2011-12-12), SAN JOSE (COSTA RICA), pages 61
BI, H. ET AL.: "Poly(sulfonated phenylene)-block-Polyimide Copolymers for Fuel Cell Applications", MACROMOLECULAR RAPID COMMUNICATIONS, vol. 30, no. ISSUE, 2009, pages 1852 - 1856
GUO, X. ET AL.: "Novel Sulfonated Polyimides as Polyelectrolytes for Fuel Cell Application. 2. Synthesis and Proton Conductivity of Polyimides from 9,9-Bis(4-aminophenyl) fluorene-2,7-disulfonic Acid", MACROMOLECULES, vol. 35, 2002, pages 6707 - 6713, XP055134332, DOI: doi:10.1021/ma020260w
WATARI, T. ET AL.: "Synthesis, water stability and proton conductivity of novel sulfonated polyimides from 4,4'-bis(4-aminophenoxy)biphenyl-3,3'-disulfonic acid", JOURNAL OF MEMBRANE SCIENCE, vol. 230, 2004, pages 111 - 120, XP004486498, DOI: doi:10.1016/j.memsci.2003.10.037
BI, H. ET AL.: "Poly(sulfonated phenylene)-block-Polyimide Copolymers for Fuel Cell Applications", MACROMOLECULAR RAPID COMMUNICATIONS, vol. 30, no. ISSUE, 2009, pages 1852 - 1856
GUO, X. ET AL.: "Novel Sulfonated Polyimides as Polyelectrolytes for Fuel Cell Application. 2. Synthesis and Proton Conductivity of Polyimides from 9,9-Bis(4-aminophenyl) fluorene-2,7-disulfonic Acid", MACROMOLECULES, vol. 35, 2002, pages 6707 - 6713, XP055134332, DOI: doi:10.1021/ma020260w
WATARI, T. ET AL.: "Synthesis, water stability and proton conductivity of novel sulfonated polyimides from 4,4'-bis(4-aminophenoxy)biphenyl-3,3'-disulfonic acid", JOURNAL OF MEMBRANE SCIENCE, vol. 230, 2004, pages 111 - 120, XP004486498, DOI: doi:10.1016/j.memsci.2003.10.037
Attorney, Agent or Firm:
LEE, UN CHEOL (KR)
이은철 (KR)
이은철 (KR)
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