A simple postsulfonation of poly(arylene ether sulfone) Radelย R
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Author list: Srithong S., Jiraratananon R., Hansupalak N.
Publisher: Wiley
Publication year: 2011
Journal: Journal of Applied Polymer Science (0021-8995)
Volume number: 119
Issue number: 2
Start page: 973
End page: 976
Number of pages: 4
ISSN: 0021-8995
eISSN: 1097-4628
Languages: English-Great Britain (EN-GB)
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Abstract
Commercially available Radelย R, a poorly acid resistant biphenol-based poly(arylene ether sulfone), was successfully sulfonated by a simple and rapid postsulfonation reaction using oleum as the sulfonating agent. Polymer degradation due to contact with acid could easily be minimized by adjusting reaction conditions. The suitable reaction conditions, when the 1: 3 molar ratio of the polymer to the sulfonating agent was used, were: 10% of oleum in chloroform, 10% concentration of Radelย R in chloroform, and temperature between 0 and 50ฐC. Under these conditions, the reaction was complete within 45 min. Thermal properties, degradation characteristics and the viscosity of the postsulfonated polymer are reported. ฉ 2010 Wiley Periodicals, Inc.
Keywords
Radelย R
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