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Surface hydroxylation of poly(vinylidene fluoride) (PVDF) film
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1997
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EngineeringAlcohol MotifsOrganic ChemistryChemistryPolymersChemical EngineeringPolymer TechnologySurface HydroxylationPolymer ChemistryMaterials SciencePolymer EngineeringSurface ModificationPolymer AnalysisPhotodegradationPvdf SurfaceOrganic Material ChemistryPolymer ScienceSurface SciencePolymer CharacterizationPvdf FilmFunctional PolymerFunctional Materials
The surface of PVDF film was selectively modified by wet chemistry. Treatment with aqueous LiOH produced HF-elimination and the emergence of an oxygen-containing functionality. The XPS analysis clearly indicated the presence of ketone-, ether(epoxide)-, and alcohol motifs. The percentage of alcohols could be significantly increased by reduction of the ketones with NaBH4 in 2-propanol, followed by reduction of the epoxides with DIBAL-H in hexane. Thus, the full treatment led to a PVDF surface displaying 7 to 16% of oxygen-containing units, of which about 60% consisted in alcohol motifs. The reactvity of the surface-displayed hydroxyl functions was assayed by radiolabeling with [3H]-Ac2O. © 1997 John Wiley & Sons, Inc. J. Polym Sci A: Polym Chem 35: 1227–1235, 1997