Thermal analysis of perfluorosulfonated ionomers

The thermal properties of perfluorosulfonated ionomer (PFSI) precursors, H-type, and Na-type PFSIs with various ion exchange capacity of 0.36, 0.88, 1.02, and 1.20 mequiv./g in the form of pellets were investigated by thermogravimetry and differential scanning calorimetry. It is revealed that the Na...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2012-12, Vol.110 (3), p.1119-1126
Main Authors: Luan, Yinghao, Zhao, Junhong, Yang, Jinghui, Ma, Xinsheng
Format: Article
Language:English
Subjects:
Analytical Chemistry
Applied sciences
Chemistry
Chemistry and Materials Science
Exact sciences and technology
Exchange resins and membranes
Forms of application and semi-finished materials
Inorganic Chemistry
Measurement Science and Instrumentation
Physical Chemistry
Polymer industry, paints, wood
Polymer Sciences
Technology of polymers
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Summary:The thermal properties of perfluorosulfonated ionomer (PFSI) precursors, H-type, and Na-type PFSIs with various ion exchange capacity of 0.36, 0.88, 1.02, and 1.20 mequiv./g in the form of pellets were investigated by thermogravimetry and differential scanning calorimetry. It is revealed that the Na-type PFSIs have the highest thermal stability, and the mechanism of thermal degradation of H-type PFSIs is different from those of precursors and Na-type PFSIs. The DSC measurements indicate that the thermal behaviors of the precursors, the H- and Na- type PFSIs are very different due to the difference of the end groups of the pedants.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-011-2020-9