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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:07 |
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Conference: Bucharest University Faculty of Physics 2006 Meeting
Section: Electricity and Biophysics
Title:
Preparation of amine rich surfaces by plasma polymerization of ethylenediamine
Authors:
C. Stancu(1), A. Lazea1, D. Bas(2), M. Mutlu(2), I. Boyaci(2), V. Iliosu(3), M. Bercu(3), G. Dinescu(1)
Affiliation:
1 National Institute for Laser, Plasma and Radiation Physics, P.O. Box MG 36 Magurele Bucharest, 77125 Romania; e-mail: dinescug@infim.ro
2 University of Ankara, Department of Food Engineering Hacettepe, Turkey
3 Physics Faculty, University of Bucharest, P.O. Box MG 11 Magurele Bucharest, Romania
E-mail
cstancu02@yahoo.com
Keywords:
Keywords: plasma functionalization, thin polymeric films, amine groups
Abstract:
Plasma surface functionalization is frequently used to improve the adaptation of polymer surfaces to biological environments. Particularly, preparation of surfaces rich in amino groups which favors the interaction with biological molecules is of special interest. Such surfaces functionalized by plasma polymerization appear most desirable for many applications. This contribution reports on functionalized surfaces prepared by plasma polymerization of dimethylenediamine precursor in a remote radiofrequency plasma cylindrical reactor. Plasma is generated in a small discharge chamber and flows along the reaction tube. The precursor is injected downstream of the discharge zone, is decomposed by plasma species and the resulted radicals are transported along the flow axis to the substrate (silicon, glass). The experiments were performed in nitrogen in the torr pressure range and hundreds of watt power, in continuous wave and pulsed modes. Thin films of plasma polymerized dimethylenediamine were obtained. The characteristics of the films were investigated by Atomic Force Microscopy and Fourier Transform Infrared Spectroscopy. Results concerning the surface topography and film composition are presented and discussed.
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