Journal
EUROPEAN POLYMER JOURNAL
Volume 48, Issue 12, Pages 2070-2075Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2012.09.002
Keywords
Chloromethylation; Polysulfone; Photosensitive polymer; Chalcone; Cinnamic acid; Photocrosslinking
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Funding
- National Science Foundation of Hubei Province [2008CDB251]
- Scientific Research Foundation for Returned Overseas Chinese Scholars of the Ministry of Education [BZY07001]
- New & Renewable Energy R&D program under the Ministry of Knowledge Economy, Republic of Korea [2009T100100606]
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Novel photosensitive polysulfones with chalcone or cinnamate units in the side chains were successfully synthesized from a commercially available polysulfone via a two-step reaction process, chloromethylation and esterification. The chemical structures of the resulting polymers were characterized by H-1 NMR spectroscopy. The thermal and mechanical properties of photosensitive polysulfones were investigated by TGA, DSC, and a universal tensile tester. Crosslinking of photosensitive polysulfones were demonstrated by UV irradiation and monitored by UV-vis spectroscopy. Both substituted polysulfones showed excellent solubility in various polar solvents and were rendered insoluble after phtocross-linking. The polysulfone with chalcone side units exhibits a higher photosensitivity, better thermal and mechanical properties than the cinnamate-substituted polysulfone. (C) 2012 Elsevier Ltd. All rights reserved.
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