Polysulfones terminated with trimethylsilylethynyl, ethynyl, and phenylethynyl groups increased solvent resistance. Upon application of heat, with or without catalyst, end groups react to provide cross linking and chain extension. Result: temperature of polymer increased, more importantly, solvent resistance greatly improved. Solutions used conveniently for preparation of films, coatings, membranes, prepreg, and adhesive tapes.
Solvent-Resistant Polysulfones
NASA Tech Briefs ; 7 , 4
01.10.1983
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Englisch
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