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Sulfonated Polystyrene Pore-Filled Electrolytes Membranes By Electrons Induced Grafting Of Styrene Into PTFE Films : Thermal Stability And Structural Investigation

The thermal stability and structural investigation of sulfonated polystyrene pore-filled electrolyte PTFE membranes prepared by radiation grafting of styrene into porous PTFE films and the subsequent sulfonation, were studied via using thermal gravimetric analysis and differential scanning calorimet...

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Main Authors: Zubir, N. A., Ismail, A. F., Nasef, M. M., Dahlan, K. Z. M., Saidi, H.
Format: Conference or Workshop Item
Language:English
Published: 2004
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/1063/1/AhmadFauziIsmail2004_SulfonatedPolystyrenePorefilledElectrolytes.pdf
http://eprints.utm.my/id/eprint/1063/
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spelling my.utm.10632010-06-01T02:50:50Z http://eprints.utm.my/id/eprint/1063/ Sulfonated Polystyrene Pore-Filled Electrolytes Membranes By Electrons Induced Grafting Of Styrene Into PTFE Films : Thermal Stability And Structural Investigation Zubir, N. A. Ismail, A. F. Nasef, M. M. Dahlan, K. Z. M. Saidi, H. TP Chemical technology The thermal stability and structural investigation of sulfonated polystyrene pore-filled electrolyte PTFE membranes prepared by radiation grafting of styrene into porous PTFE films and the subsequent sulfonation, were studied via using thermal gravimetric analysis and differential scanning calorimetry, respectively. A three-step degradation pattern was observed from TGA thermograms of all the membranes, which attributed to the dehydration, desulfonation, and degradation of the PTFE backbone. The weight losses in the membranes were found to be reliant on the grafting yield, whilst the degradation temperatures were shown to be independent of the grafting yield. The intrinsic crystallinity of the PTFE matrix was found to exhibit a decreasing trend with increasing in the grafting yield. A further decrease in crystalilinity was also observed in the sulfonation reaction. The residual crystallinity of the PTFE matrix approximately 11% was still remained in the membranes even after subjected to severe reaction conditions. The decreased in crystallinity of the resulting membranes can be explained by the combination of the dilution effect and the crystal disruption which occurred within the membranes matrix. 2004-04 Conference or Workshop Item NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/1063/1/AhmadFauziIsmail2004_SulfonatedPolystyrenePorefilledElectrolytes.pdf Zubir, N. A. and Ismail, A. F. and Nasef, M. M. and Dahlan, K. Z. M. and Saidi, H. (2004) Sulfonated Polystyrene Pore-Filled Electrolytes Membranes By Electrons Induced Grafting Of Styrene Into PTFE Films : Thermal Stability And Structural Investigation. In: Regional Symposium on Membrane Science and Technology 2004, 21-25 April 2004, Puteri Pan Pacific Hotel, Johor Bahru, Johor, Malaysia.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Zubir, N. A.
Ismail, A. F.
Nasef, M. M.
Dahlan, K. Z. M.
Saidi, H.
Sulfonated Polystyrene Pore-Filled Electrolytes Membranes By Electrons Induced Grafting Of Styrene Into PTFE Films : Thermal Stability And Structural Investigation
description The thermal stability and structural investigation of sulfonated polystyrene pore-filled electrolyte PTFE membranes prepared by radiation grafting of styrene into porous PTFE films and the subsequent sulfonation, were studied via using thermal gravimetric analysis and differential scanning calorimetry, respectively. A three-step degradation pattern was observed from TGA thermograms of all the membranes, which attributed to the dehydration, desulfonation, and degradation of the PTFE backbone. The weight losses in the membranes were found to be reliant on the grafting yield, whilst the degradation temperatures were shown to be independent of the grafting yield. The intrinsic crystallinity of the PTFE matrix was found to exhibit a decreasing trend with increasing in the grafting yield. A further decrease in crystalilinity was also observed in the sulfonation reaction. The residual crystallinity of the PTFE matrix approximately 11% was still remained in the membranes even after subjected to severe reaction conditions. The decreased in crystallinity of the resulting membranes can be explained by the combination of the dilution effect and the crystal disruption which occurred within the membranes matrix.
format Conference or Workshop Item
author Zubir, N. A.
Ismail, A. F.
Nasef, M. M.
Dahlan, K. Z. M.
Saidi, H.
author_facet Zubir, N. A.
Ismail, A. F.
Nasef, M. M.
Dahlan, K. Z. M.
Saidi, H.
author_sort Zubir, N. A.
title Sulfonated Polystyrene Pore-Filled Electrolytes Membranes By Electrons Induced Grafting Of Styrene Into PTFE Films : Thermal Stability And Structural Investigation
title_short Sulfonated Polystyrene Pore-Filled Electrolytes Membranes By Electrons Induced Grafting Of Styrene Into PTFE Films : Thermal Stability And Structural Investigation
title_full Sulfonated Polystyrene Pore-Filled Electrolytes Membranes By Electrons Induced Grafting Of Styrene Into PTFE Films : Thermal Stability And Structural Investigation
title_fullStr Sulfonated Polystyrene Pore-Filled Electrolytes Membranes By Electrons Induced Grafting Of Styrene Into PTFE Films : Thermal Stability And Structural Investigation
title_full_unstemmed Sulfonated Polystyrene Pore-Filled Electrolytes Membranes By Electrons Induced Grafting Of Styrene Into PTFE Films : Thermal Stability And Structural Investigation
title_sort sulfonated polystyrene pore-filled electrolytes membranes by electrons induced grafting of styrene into ptfe films : thermal stability and structural investigation
publishDate 2004
url http://eprints.utm.my/id/eprint/1063/1/AhmadFauziIsmail2004_SulfonatedPolystyrenePorefilledElectrolytes.pdf
http://eprints.utm.my/id/eprint/1063/
_version_ 1643643249367187456
score 13.211869

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