End-group cross-linked polybenzimidazole blend membranes for high temperature proton exchange membrane

Mingyu Li, Gang Zhang, Huiping Zuo, Miaomiao Han, Chengji Zhao, Hao Jiang, Zhongguo Liu, Liyuan Zhang, Hui Na

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A cross-linked network is obtained by an end-group cross-linkable PBI (E-PBI) and 4,4'-diglycidyl (3,3',5,5'-tetramethylbiphenyl) epoxy resin (TMBP). The formation of the network is proved by FT-IR and gel fraction test. Then, high temperature proton exchange membranes are constructed by incorporating the cross-linked network into poly(2,2'-(1,3-phenylene)-5,5'-bibenzimidazole) (m-PBI). The influences of the end-group cross-linked network on the properties of membranes are studied, such as, phosphonate acid doping ability, thermal stability, mechanical property, oxidative stability and proton conductivity. The E-PBI/TMBP in the membranes contributes to the improvement of acid doping ability, proton conductivity, mechanical properties and oxidative stabilities. The blend membranes with 20-90. wt% E-PBI/TMBP show higher proton conductivity than pristine PBI at 120 °C-180 °C. These results indicate that the end-group cross-linked blend membranes are promising materials as high temperature proton exchange membranes.

Original languageEnglish (US)
Pages (from-to)495-502
Number of pages8
JournalJournal of Membrane Science
Volume423-424
DOIs
StatePublished - Dec 15 2012

Fingerprint

polybenzimidazole
Protons
Ion exchange
membranes
Membranes
Temperature
Proton conductivity
protons
conductivity
Doping (additives)
mechanical properties
Epoxy Resins
Organophosphonates
Mechanical properties
acids
Acids
epoxy resins
Epoxy resins
Thermodynamic stability
thermal stability

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Cite this

Li, Mingyu ; Zhang, Gang ; Zuo, Huiping ; Han, Miaomiao ; Zhao, Chengji ; Jiang, Hao ; Liu, Zhongguo ; Zhang, Liyuan ; Na, Hui. / End-group cross-linked polybenzimidazole blend membranes for high temperature proton exchange membrane. In: Journal of Membrane Science. 2012 ; Vol. 423-424. pp. 495-502.
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abstract = "A cross-linked network is obtained by an end-group cross-linkable PBI (E-PBI) and 4,4'-diglycidyl (3,3',5,5'-tetramethylbiphenyl) epoxy resin (TMBP). The formation of the network is proved by FT-IR and gel fraction test. Then, high temperature proton exchange membranes are constructed by incorporating the cross-linked network into poly(2,2'-(1,3-phenylene)-5,5'-bibenzimidazole) (m-PBI). The influences of the end-group cross-linked network on the properties of membranes are studied, such as, phosphonate acid doping ability, thermal stability, mechanical property, oxidative stability and proton conductivity. The E-PBI/TMBP in the membranes contributes to the improvement of acid doping ability, proton conductivity, mechanical properties and oxidative stabilities. The blend membranes with 20-90. wt{\%} E-PBI/TMBP show higher proton conductivity than pristine PBI at 120 °C-180 °C. These results indicate that the end-group cross-linked blend membranes are promising materials as high temperature proton exchange membranes.",
author = "Mingyu Li and Gang Zhang and Huiping Zuo and Miaomiao Han and Chengji Zhao and Hao Jiang and Zhongguo Liu and Liyuan Zhang and Hui Na",
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Li, M, Zhang, G, Zuo, H, Han, M, Zhao, C, Jiang, H, Liu, Z, Zhang, L & Na, H 2012, 'End-group cross-linked polybenzimidazole blend membranes for high temperature proton exchange membrane', Journal of Membrane Science, vol. 423-424, pp. 495-502. https://doi.org/10.1016/j.memsci.2012.08.058

End-group cross-linked polybenzimidazole blend membranes for high temperature proton exchange membrane. / Li, Mingyu; Zhang, Gang; Zuo, Huiping; Han, Miaomiao; Zhao, Chengji; Jiang, Hao; Liu, Zhongguo; Zhang, Liyuan; Na, Hui.

In: Journal of Membrane Science, Vol. 423-424, 15.12.2012, p. 495-502.

Research output: Contribution to journalArticle

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AU - Li, Mingyu

AU - Zhang, Gang

AU - Zuo, Huiping

AU - Han, Miaomiao

AU - Zhao, Chengji

AU - Jiang, Hao

AU - Liu, Zhongguo

AU - Zhang, Liyuan

AU - Na, Hui

PY - 2012/12/15

Y1 - 2012/12/15

N2 - A cross-linked network is obtained by an end-group cross-linkable PBI (E-PBI) and 4,4'-diglycidyl (3,3',5,5'-tetramethylbiphenyl) epoxy resin (TMBP). The formation of the network is proved by FT-IR and gel fraction test. Then, high temperature proton exchange membranes are constructed by incorporating the cross-linked network into poly(2,2'-(1,3-phenylene)-5,5'-bibenzimidazole) (m-PBI). The influences of the end-group cross-linked network on the properties of membranes are studied, such as, phosphonate acid doping ability, thermal stability, mechanical property, oxidative stability and proton conductivity. The E-PBI/TMBP in the membranes contributes to the improvement of acid doping ability, proton conductivity, mechanical properties and oxidative stabilities. The blend membranes with 20-90. wt% E-PBI/TMBP show higher proton conductivity than pristine PBI at 120 °C-180 °C. These results indicate that the end-group cross-linked blend membranes are promising materials as high temperature proton exchange membranes.

AB - A cross-linked network is obtained by an end-group cross-linkable PBI (E-PBI) and 4,4'-diglycidyl (3,3',5,5'-tetramethylbiphenyl) epoxy resin (TMBP). The formation of the network is proved by FT-IR and gel fraction test. Then, high temperature proton exchange membranes are constructed by incorporating the cross-linked network into poly(2,2'-(1,3-phenylene)-5,5'-bibenzimidazole) (m-PBI). The influences of the end-group cross-linked network on the properties of membranes are studied, such as, phosphonate acid doping ability, thermal stability, mechanical property, oxidative stability and proton conductivity. The E-PBI/TMBP in the membranes contributes to the improvement of acid doping ability, proton conductivity, mechanical properties and oxidative stabilities. The blend membranes with 20-90. wt% E-PBI/TMBP show higher proton conductivity than pristine PBI at 120 °C-180 °C. These results indicate that the end-group cross-linked blend membranes are promising materials as high temperature proton exchange membranes.

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