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Thin Film Plasma Deposition of Allylamine; Effects of Solvent Treatment

Published online by Cambridge University Press:  10 February 2011

M. T. van Os ,
B. Menges ,
R. Förch ,
W. Knoll ,
R. B. Timmons  and
G. J. Vancso
M. T. van Os
Affiliation:
Material Science Group, Max-Planck-Institute for Polymer Research, Ackermannweg 10, D- 55128 Mainz, Germany Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019-0065, U.S.A. Materials Science and Technology of Polymers, Department of Chemical Technology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
B. Menges
Affiliation:
Material Science Group, Max-Planck-Institute for Polymer Research, Ackermannweg 10, D- 55128 Mainz, Germany
R. Förch
Affiliation:
Material Science Group, Max-Planck-Institute for Polymer Research, Ackermannweg 10, D- 55128 Mainz, Germany
W. Knoll
Affiliation:
Material Science Group, Max-Planck-Institute for Polymer Research, Ackermannweg 10, D- 55128 Mainz, Germany
R. B. Timmons
Affiliation:
Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019-0065, U.S.A.
G. J. Vancso
Affiliation:
Materials Science and Technology of Polymers, Department of Chemical Technology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
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Abstract

Amine-functionalized thin films were prepared by plasma induced deposition of allylamine. Radio frequency (rf) plasma polymerization was carried out under both continuous wave (CW) and pulsed plasma conditions to control the film chemistry, all other process variables being held constant. Using plasma polymerized films for subsequent grafting reactions or for direct biomedical applications usually involves exposure of the films to a solvent environment. It was the major focus of this work to investigate both the chemical and physical effects of solvents on plasma polymerized allylamine films. Film properties were determined using Fourier Transform Infrared Spectroscopy (FTIR), X-ray Photoelectron Spectroscopy (XPS), Waveguide Mode Spectroscopy (WaMS) and Surface Plasmon Spectroscopy (SPS). WaMS provided an ideal opportunity to study the complex swelling and drying behaviour of these films by allowing a simultaneous study of the changes in film thickness and refractive index. Although the amine groups of the monomer were increasingly retained in the films as the RF duty cycle was lowered, a larger amount of oxygen was also found to be incorporated upon exposure to air. Extraction in ethanol led to a decrease in film thickness, especially for the films produced at low duty cycles, but appeared to have little effect on the film composition, as measured by XPS and FTIR.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 544: Symposium Y – Plasma Deposition and Treatment of Polymers , 1998 , 45
Copyright
Copyright © Materials Research Society 1999

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