Branch-shaped sulfonated poly(ether ketone)s as proton exchange membranes

• Main Authors: Chi-han Hsieh, 謝其翰
• Other Authors: Ming-chou Chen
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/91743835265864024447

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.