Cation exchange membranes by radiation-induced graft copolymerization of styrene onto PFA copolymer films. III. Thermal stability of the membranes
Thermal stability of cation exchange, PFA-g-polystyrene sulfonic acid membranes prepared by radiation-induced graft copolymerization of styrene onto PFA films followed by sulfonation was studied by thermal gravimetric analysis (TGA) and oven heat treatment. The tested samples included original and g...
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| Format: | Article |
| Language: | en |
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John Wiley & Sons
1999
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| Online Access: | http://eprints.utm.my/3716/1/Nasef1999_CationExchangeMembranesRadiation-Induced.pdf http://eprints.utm.my/3716/ |
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| author | Nasef, Mohamed Mahmoud Saidi, Hamdani Mohd. Nor, Hussin |
| author_facet | Nasef, Mohamed Mahmoud Saidi, Hamdani Mohd. Nor, Hussin |
| author_sort | Nasef, Mohamed Mahmoud |
| building | UTM Library |
| collection | Institutional Repository |
| content_provider | Universiti Teknologi Malaysia |
| content_source | UTM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Thermal stability of cation exchange, PFA-g-polystyrene sulfonic acid membranes prepared by radiation-induced graft copolymerization of styrene onto PFA films followed by sulfonation was studied by thermal gravimetric analysis (TGA) and oven heat treatment. The tested samples included original and grafted PFA films as reference materials. All the membranes showed multistep decomposition patterns due to dehydration, desulfonation, dearomatization, and decomposition of the PFA matrix. Investigations of the individual decomposition behaviors showed that the weight loss strongly depends upon the degree of grafting. However, the decomposition temperatures were found to be independent of the degree of grafting. The loss in some selected membrane properties such as ion exchange capacity and water uptake was found to be function of the degree of grafting, temperature, and the time of heat treatment. |
| format | Article |
| id | my.utm.eprints-3716 |
| institution | Universiti Teknologi Malaysia |
| language | en |
| publishDate | 1999 |
| publisher | John Wiley & Sons |
| record_format | eprints |
| spelling | my.utm.eprints-37162017-10-24T04:44:04Z http://eprints.utm.my/3716/ Cation exchange membranes by radiation-induced graft copolymerization of styrene onto PFA copolymer films. III. Thermal stability of the membranes Nasef, Mohamed Mahmoud Saidi, Hamdani Mohd. Nor, Hussin TP Chemical technology Thermal stability of cation exchange, PFA-g-polystyrene sulfonic acid membranes prepared by radiation-induced graft copolymerization of styrene onto PFA films followed by sulfonation was studied by thermal gravimetric analysis (TGA) and oven heat treatment. The tested samples included original and grafted PFA films as reference materials. All the membranes showed multistep decomposition patterns due to dehydration, desulfonation, dearomatization, and decomposition of the PFA matrix. Investigations of the individual decomposition behaviors showed that the weight loss strongly depends upon the degree of grafting. However, the decomposition temperatures were found to be independent of the degree of grafting. The loss in some selected membrane properties such as ion exchange capacity and water uptake was found to be function of the degree of grafting, temperature, and the time of heat treatment. John Wiley & Sons 1999 Article PeerReviewed application/pdf en http://eprints.utm.my/3716/1/Nasef1999_CationExchangeMembranesRadiation-Induced.pdf Nasef, Mohamed Mahmoud and Saidi, Hamdani and Mohd. Nor, Hussin (1999) Cation exchange membranes by radiation-induced graft copolymerization of styrene onto PFA copolymer films. III. Thermal stability of the membranes. Journal of Applied Polymer Science, 77 . pp. 1877-1885. |
| spellingShingle | TP Chemical technology Nasef, Mohamed Mahmoud Saidi, Hamdani Mohd. Nor, Hussin Cation exchange membranes by radiation-induced graft copolymerization of styrene onto PFA copolymer films. III. Thermal stability of the membranes |
| title | Cation exchange membranes by radiation-induced graft copolymerization of styrene onto PFA copolymer films. III. Thermal stability of the membranes |
| title_full | Cation exchange membranes by radiation-induced graft copolymerization of styrene onto PFA copolymer films. III. Thermal stability of the membranes |
| title_fullStr | Cation exchange membranes by radiation-induced graft copolymerization of styrene onto PFA copolymer films. III. Thermal stability of the membranes |
| title_full_unstemmed | Cation exchange membranes by radiation-induced graft copolymerization of styrene onto PFA copolymer films. III. Thermal stability of the membranes |
| title_short | Cation exchange membranes by radiation-induced graft copolymerization of styrene onto PFA copolymer films. III. Thermal stability of the membranes |
| title_sort | cation exchange membranes by radiation-induced graft copolymerization of styrene onto pfa copolymer films. iii. thermal stability of the membranes |
| topic | TP Chemical technology |
| url | http://eprints.utm.my/3716/1/Nasef1999_CationExchangeMembranesRadiation-Induced.pdf http://eprints.utm.my/3716/ |
| url_provider | http://eprints.utm.my/ |