Динев, Петър Дончев; Dineff, Peter Donchev; Владкова, Тодорка; Vladkova, Todorka; Господинова, Диляна Николаева; Gospodinova, Dilyana Nikolaeva; Керанов, Иван; Keranov, Ivan

Йонно-плазмено ецване и функционализиране на поли (диметилсилоксанови) повърхности

Plasma immersed ion beam etching and functionalization of poly (dimethylsiloxane) surfaces

2009

Proceedings of the Technical University – Sofia, 59(2), 2009, pp. 131-145

Технически университет - София

1311-0829 [issn]

Article

bul

Modification of polymer surfaces by changing the chemical structure, surface energy, and bonding characteristics has considerable technological importance in the area of biocompatibility. Interest has been increasingly in recent years directed to plasma oxidized poly(dimethylsiloxane) surfaces as bioactive substrate having a capacity to interact with a living tissue or system. New plasma immersed argon ion beam technology for controlled oxidization and mineralization of PDMS surfaces was studied eider for academic purpose or in view of practical application. These modification techniques affect only a shallow surface region, approximately 510 nm, and the bulk properties of the polymer are unaffected. The photoelectron spectroscopy for chemical analysis (ESCA) technique was used to characterize the surface chemistry modified by argon ion beam bombardment and atmospheric pressure air oxidation. Contact angle measurements were used to determine the polar and dispersion components, the sum of which is the surface free energy. AFM images provide details of surface topography

Съдържа диагр., фигури и формули. – Библиогр., с. 145.