Branch-shaped sulfonated poly(ether ketone)s as proton exchange membranes
碩士 === 國立中央大學 === 化學研究所 === 97 === A series of branched and cross-linked poly(ether ketone)s were synthesized by aromatic nucleophilic substitution reaction. The branching and cross-linking were effective to improve the dimensional stability under wet condition without losing their high thermal, oxi...
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| Format: | Others |
| Language: | zh-TW |
| Online Access: | http://ndltd.ncl.edu.tw/handle/91743835265864024447 |
| Summary: | 碩士 === 國立中央大學 === 化學研究所 === 97 === A series of branched and cross-linked poly(ether ketone)s were
synthesized by aromatic nucleophilic substitution reaction. The branching
and cross-linking were effective to improve the dimensional stability
under wet condition without losing their high thermal, oxidative, and
hydrolytic stability. The membranes exhibited high conductivity of 10-1
S/cm at 70oC、100% RH, and 10-2S/cm at 25oC、100% RH equally.
Especially B-Np-SPEEKK membrane exhibited low swelling ratio (29%
deformation), and exhibited high conductivity of 0.12S/cm at 70oC、
100RH. The results exhibited these branched and cross-linked ionomer
membranes are possible to become new type proton exchange membranes
in fuel cell.
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