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Spectral investigations of the processes observed at polydimetylsiloxane polymer-substrate interface during its polymerization process in negative and positive corona discharges

A. GROZA1, A. SURMEIAN1, C. DIPLASU1, M. GANCIU1,2, P. CHAPON3, I. I. POPESCU4

Affiliation

  1. Institute of Atomic Physics-INFLPR, P.O.Box MG 36, R-76900, Bucharest, Romania
  2. Laboratoire de Physique des Gaz et des Plasmas, UMR CNRS-UPS 8578, Université Paris-Sud, Bat 210, 91405 Orsay, France
  3. Horiba Jobin Yvon, 91665 Longjumeau, France
  4. Romanian Academy

Abstract

In this paper we demonstrate that negative and positive corona discharge in air at atmospheric pressure is a convenient physical method for generation of germanium oxides in polydimetylsiloxane based polymers layers during the polymerization processes. The dependence of content distribution of the different germanium oxides in the polymers layers with the electrodes polarity was investigated by infrared (IR) and Glow Discharge Optical Emission (GD-OES) spectroscopies. The results of the spectroscopic measurements show that in positive corona discharges, the germanium oxide diffuses in the polymers while in negative corona discharges, the germanium oxide layer formed at the polymersubstrate interface has a limited diffusion due to the formation of Si-O-Ge bonds.

Keywords

corona discharges, polymerization processes, oxide layers.

Submitted at: Feb. 28, 2010
Accepted at: Nov. 19, 2010

Citation

A. GROZA, A. SURMEIAN, C. DIPLASU, M. GANCIU, P. CHAPON, I. I. POPESCU, Spectral investigations of the processes observed at polydimetylsiloxane polymer-substrate interface during its polymerization process in negative and positive corona discharges, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 11, pp. 2311-2314 (2010)