| 摘要 |
<p>The present invention relates to a propanesulfonic acid-grafted polyphenylene and, more specifically, to a polyphenylene having a propanesulfonic acid at a side chain, a preparation method thereof and a fuel cell electrolyte membrane containing the same. According to the present invention, a pendant-type alkyl sulfonic acid structure is introduced to a polyphenylene polymerized from isatin and 2,2′-biphenol, thereby enhancing proton conductivity and cell performance and providing a fuel cell electrolyte membrane having excellent chemical stability.</p> |
