The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 2012
Filed:
Jun. 02, 2009
Chung-liang Chang, Hsinchu, TW;
Ming-chou Chen, Zhubei, TW;
Ko-lun Hsu, Kaohsiung, TW;
Hsing-chieh LI, Changhua, TW;
Chi-han Hsieh, Miaoli County, TW;
Peter Po-jen Chu, Hsinchu County, TW;
Chung-Liang Chang, Hsinchu, TW;
Ming-Chou Chen, Zhubei, TW;
Ko-Lun Hsu, Kaohsiung, TW;
Hsing-Chieh Li, Changhua, TW;
Chi-Han Hsieh, Miaoli County, TW;
Peter Po-Jen Chu, Hsinchu County, TW;
Industrial Technology Research Institute, Hsinchu County, TW;
National Central University, Taoyuan County, TW;
Abstract
A series of crosslinkable sulfonated poly(ether ketone)s containing cycloalkenyl groups were synthesized by aromatic nucleophilic substitution reaction. To decrease the swelling of fuel cell membranes, crosslinking of theses polymers by radical polymerization has been explored. These polymeric films exhibit good thermal and oxidative stability, and good dimensional stability in hot water. The proton conductivity of one example at room temperature is 7.52*10S/cm. The results showed that these materials containing cycloalkenyl groups are possible inexpensive candidate materials for proton exchange membranes in fuel cell applications.