Synthesis and Characterization of New Sulfonated Polyimides Containing Heterocyclic Groups for Proton Exchange Membrane Materials
碩士 === 國立臺灣科技大學 === 化學工程系 === 97 === Two novel sulfonated diamines of 2,2'-(4,4'-diaminobiphenyl-2,2'-diyl) dibenzothiazole-5-sulfonic acid (TWS) and 2,2'-(4,4'-diaminobiphenyl -2,2'-diyl)dibenzooxazole-5-sulfonic acid (TWO) were systhesized. Sulfonated copolyimides(SPI...
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ndltd-TW-097NTUS50630812016-05-02T04:11:47Z http://ndltd.ncl.edu.tw/handle/69274846232028460025 Synthesis and Characterization of New Sulfonated Polyimides Containing Heterocyclic Groups for Proton Exchange Membrane Materials 合成新型含雜環結構之磺酸化聚醯亞胺於質子交換膜材料之性質研究 Mao-Hsing Chiu 邱茂興 碩士 國立臺灣科技大學 化學工程系 97 Two novel sulfonated diamines of 2,2'-(4,4'-diaminobiphenyl-2,2'-diyl) dibenzothiazole-5-sulfonic acid (TWS) and 2,2'-(4,4'-diaminobiphenyl -2,2'-diyl)dibenzooxazole-5-sulfonic acid (TWO) were systhesized. Sulfonated copolyimides(SPIs) derived from 1,4,5,8-naphthalene tetracarboxylic dianhydride(NTDA),TWS,TWO and other non-sulfonated diamines were successfully synthesized. The SPIs have ion exchange capacity (IEC) of 1.41-2.03 meq g-1 and high desulfonation temperature of 320oC, suggesting the high stability of sulfonic acid groups. The flexible and tough membranes with high mechanical strength were prepared. They showed fairly high proton conductivity(σ). For example, the TWSAP7 with an ion exchange capacity of 1.70 meq g-1 were 125 and 177 mS/cm at 30oC and 80oC in water. They maintained high mechanical strength after aging in water 100oC for 4500 h, showing the excellent water stability. This class of novel sulfonated polyimides containing heterocylic groups is very promising for proton exchange membrane fuel cell. Yaw-Terng Chern 陳燿騰 2009 學位論文 ; thesis 111 zh-TW |
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碩士 === 國立臺灣科技大學 === 化學工程系 === 97 === Two novel sulfonated diamines of 2,2'-(4,4'-diaminobiphenyl-2,2'-diyl) dibenzothiazole-5-sulfonic acid (TWS) and 2,2'-(4,4'-diaminobiphenyl -2,2'-diyl)dibenzooxazole-5-sulfonic acid (TWO) were systhesized. Sulfonated copolyimides(SPIs) derived from 1,4,5,8-naphthalene tetracarboxylic dianhydride(NTDA),TWS,TWO and other non-sulfonated diamines were successfully synthesized. The SPIs have ion exchange capacity (IEC) of 1.41-2.03 meq g-1 and high desulfonation temperature of 320oC, suggesting the high stability of sulfonic acid groups. The flexible and tough membranes with high mechanical strength were prepared. They showed fairly high proton conductivity(σ). For example, the TWSAP7 with an ion exchange capacity of 1.70 meq g-1 were 125 and 177 mS/cm at 30oC and 80oC in water. They maintained high mechanical strength after aging in water 100oC for 4500 h, showing the excellent water stability. This class of novel sulfonated polyimides containing heterocylic groups is very promising for proton exchange membrane fuel cell.
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author2 |
Yaw-Terng Chern |
author_facet |
Yaw-Terng Chern Mao-Hsing Chiu 邱茂興 |
author |
Mao-Hsing Chiu 邱茂興 |
spellingShingle |
Mao-Hsing Chiu 邱茂興 Synthesis and Characterization of New Sulfonated Polyimides Containing Heterocyclic Groups for Proton Exchange Membrane Materials |
author_sort |
Mao-Hsing Chiu |
title |
Synthesis and Characterization of New Sulfonated Polyimides Containing Heterocyclic Groups for Proton Exchange Membrane Materials |
title_short |
Synthesis and Characterization of New Sulfonated Polyimides Containing Heterocyclic Groups for Proton Exchange Membrane Materials |
title_full |
Synthesis and Characterization of New Sulfonated Polyimides Containing Heterocyclic Groups for Proton Exchange Membrane Materials |
title_fullStr |
Synthesis and Characterization of New Sulfonated Polyimides Containing Heterocyclic Groups for Proton Exchange Membrane Materials |
title_full_unstemmed |
Synthesis and Characterization of New Sulfonated Polyimides Containing Heterocyclic Groups for Proton Exchange Membrane Materials |
title_sort |
synthesis and characterization of new sulfonated polyimides containing heterocyclic groups for proton exchange membrane materials |
publishDate |
2009 |
url |
http://ndltd.ncl.edu.tw/handle/69274846232028460025 |
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