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The surface analysis of a plasma modified contact lens surface by SSIMS
Author(s) -
Fakes D. W.,
Davies M. C.,
Brown A.,
Newton J. M.
Publication year - 1988
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740130411
Subject(s) - plasma , contact angle , surface modification , analytical chemistry (journal) , materials science , contact lens , surface (topology) , surface energy , chemistry , chromatography , composite material , optics , physics , geometry , mathematics , quantum mechanics
Abstract The oxygen glow discharge plasma modification of a contact lens material has been studied using SSIMS. SSIMS provides evidence at the molecular level for the conversion of surface organosiloxane species to inorganic silica functionalities with treatment time. These findings shown an excellent correlation with a dramatic increase in surface hydrophilicity, as derived from surface energy studies, on plasma treatment. This study further illustrates the potenial of SSIMS in the determination of the molecular changes at the surface during the plasma treatment process.