具交聯結構之磺酸化聚醚醚酮(酮) 高分子質子傳導膜之開發與製備;Branch-shaped sulfonated poly(ether ketone)s as proton exchange membranes

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/6528

Title:	具交聯結構之磺酸化聚醚醚酮(酮) 高分子質子傳導膜之開發與製備;Branch-shaped sulfonated poly(ether ketone)s as proton exchange membranes
Authors:	謝其翰;Chi-han Hsieh
Contributors:	化學研究所
Keywords:	質子交換;聚醚醚酮;磺酸化;交聯;branch;crosslink;proton exchange
Date:	2009-07-10
Issue Date:	2009-09-22 10:21:10 (UTC+8)
Publisher:	國立中央大學圖書館
Abstract:	本研究利用有機反應合成一系列具有四醇基酮之聚醚醚酮高分子，將直鏈結構之聚醚醚酮變化為交聯結構狀，並引進不同具有磺酸基團之單體，期望將親疏水相分離，藉此得到最適合應用於燃料電池的質子交換膜。此一系列交聯高分子在不失去其優良的熱穩定性、物理性質與機械強度情況下，交聯狀結構成功的降低了聚醚醚酮在高濕度下水膨潤與尺寸變化率過高的情況，並在操作溫度 25oC 下可得到平均 10-2S/cm 的傳導度，並且於 70oC 高溫下更可進一步達到10-1S/cm 的表現。其中 B-Np-SPEEKK 在 80oC 之熱水中，尺寸變化率只有 29% ，並且傳導度更可達到 0.12S/cm 的水準。因此交聯狀聚醚醚酮具有成為新型燃料電池之質子交換膜的潛力。 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.
Appears in Collections:	[Graduate Institute of Chemistry] Electronic Thesis & Dissertation

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