Synthesis and Characterization of Polyimides Bearing Benzimidazole Pendant Groups for Proton Exchange Membrane
碩士 === 國立臺灣科技大學 === 化學工程系 === 107 === A novel diamine, 2,2-bis(4-(2-(5-aminobenzimidazoly))phenyl)prop- ane(Bis/IM/NH2), containing a benzimidazole pendant groups and flexible ether linkage was synthesized successfully. The polyimides were synthesized by condensation polymerization from 2,2-bis(4-(2...
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ndltd-TW-107NTUS53420642019-10-23T05:46:05Z http://ndltd.ncl.edu.tw/handle/fdv5p5 Synthesis and Characterization of Polyimides Bearing Benzimidazole Pendant Groups for Proton Exchange Membrane 合成含苯並咪唑側基之聚醯亞胺質子交換膜及其性質研究 Chia-Yun Wang 王鉫允 碩士 國立臺灣科技大學 化學工程系 107 A novel diamine, 2,2-bis(4-(2-(5-aminobenzimidazoly))phenyl)prop- ane(Bis/IM/NH2), containing a benzimidazole pendant groups and flexible ether linkage was synthesized successfully. The polyimides were synthesized by condensation polymerization from 2,2-bis(4-(2-(5-amino- benzimidazoly))phenyl)propane(Bis/IM/NH2) and 1,4,5,8-Naphthalene- tetracarboxylic dianhydride(NTDA). They had inherent viscosities of 0.75~1.59 dL/g. All polyimides formed tough and transparent films. The PIs exhibited high thermal stability with 10 % decomposition temperature more than 450 oC in nitrogen. The proton conductivity of phosphoric acid doped PI was dependent on doping PA level and temperature. These PIs with relatively low acid doping level have higher proton conductivity than m-BPI. For example, Bis7PF2.7DMB0.3 had the highest proton conductivity at 200 oC (204 % H3PO4 uptake, 84.2 mS/cm) among those polyimides. Yaw-Terng Chern 陳燿騰 2019 學位論文 ; thesis 102 zh-TW |
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碩士 === 國立臺灣科技大學 === 化學工程系 === 107 === A novel diamine, 2,2-bis(4-(2-(5-aminobenzimidazoly))phenyl)prop-
ane(Bis/IM/NH2), containing a benzimidazole pendant groups and flexible ether linkage was synthesized successfully. The polyimides were synthesized by condensation polymerization from 2,2-bis(4-(2-(5-amino-
benzimidazoly))phenyl)propane(Bis/IM/NH2) and 1,4,5,8-Naphthalene-
tetracarboxylic dianhydride(NTDA). They had inherent viscosities of 0.75~1.59 dL/g. All polyimides formed tough and transparent films. The PIs exhibited high thermal stability with 10 % decomposition temperature more than 450 oC in nitrogen. The proton conductivity of phosphoric acid doped PI was dependent on doping PA level and temperature. These PIs with relatively low acid doping level have higher proton conductivity than m-BPI. For example, Bis7PF2.7DMB0.3 had the highest proton conductivity at 200 oC (204 % H3PO4 uptake, 84.2 mS/cm) among those polyimides.
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author2 |
Yaw-Terng Chern |
author_facet |
Yaw-Terng Chern Chia-Yun Wang 王鉫允 |
author |
Chia-Yun Wang 王鉫允 |
spellingShingle |
Chia-Yun Wang 王鉫允 Synthesis and Characterization of Polyimides Bearing Benzimidazole Pendant Groups for Proton Exchange Membrane |
author_sort |
Chia-Yun Wang |
title |
Synthesis and Characterization of Polyimides Bearing Benzimidazole Pendant Groups for Proton Exchange Membrane |
title_short |
Synthesis and Characterization of Polyimides Bearing Benzimidazole Pendant Groups for Proton Exchange Membrane |
title_full |
Synthesis and Characterization of Polyimides Bearing Benzimidazole Pendant Groups for Proton Exchange Membrane |
title_fullStr |
Synthesis and Characterization of Polyimides Bearing Benzimidazole Pendant Groups for Proton Exchange Membrane |
title_full_unstemmed |
Synthesis and Characterization of Polyimides Bearing Benzimidazole Pendant Groups for Proton Exchange Membrane |
title_sort |
synthesis and characterization of polyimides bearing benzimidazole pendant groups for proton exchange membrane |
publishDate |
2019 |
url |
http://ndltd.ncl.edu.tw/handle/fdv5p5 |
work_keys_str_mv |
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