期刊
EUROPEAN POLYMER JOURNAL
卷 37, 期 1, 页码 9-18出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0014-3057(00)00094-X
关键词
PEEK film; PEEK-OH film; photografting; aryl azide; XPS analysis
Two photochemical routes have been considered for the surface topologically defined functionalization of poly(ether ether ketone) (PEEK) films, based, respectively, on the covalent coupling of molecules protected with a photoclivable group (indirect way A), and on the photografting of various azide derivatives (direct way B). (4,5-Dimethoxy-2-nitrophenyl)methyl succinamate 3 could be coupled to the PEEK-OH film surface, under wet-chemistry conditions, but in rather low yield. 4-Azido-benzoic acid 9,4-azido-tetrafluorobenzoic acid 6 and N-butyl-N'-(4-azidophenyl)thiourea 8 were grafted on the PEEK and PEEK-OH films surface, under mild photochemical conditions, in moderate to good yields. Attempts to obtain patterned surfaces with 4-azido-benzoic acid 9 and sodium 5-azido-naphthalene-1-sulphonate 10, under microlithographic conditions, failed. (C) 2000 Elsevier Science Ltd. All rights reserved.
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