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Multitechnique surface spectroscopic studies of plasma-modified polymers II: H2O/Ar plasma-modified polymethylmethacrylate/polymethacrylic acid copolymers

Published online by Cambridge University Press:  31 January 2011

Thomas J. Hook ,
Joseph A. Gardella Jr.  and
Lawrence Salvati Jr.
Thomas J. Hook
Affiliation:
Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14214
Joseph A. Gardella Jr.
Affiliation:
Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14214
Lawrence Salvati Jr.
Affiliation:
Perkin-Elmer Physical Electronics Laboratories, 5 Progress Street, Edison, New Jersey 08820
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Abstract

Results from the x-ray photoelectron spectroscopy (XPS or ESCA), ion scattering spectroscopy (ISS or LEIS), and Fourier transform infrared spectrometry (FTIR) analyses are presented for unmodified and modified poly (methylmethacrylate)/poly (methacrylic acid) (PMMA/PMAA) copolymer films. Analyses of the unmodified PMMA/PMAA copolymer series, via ESCA, ISS, and FTIR, established the surface composition and functionality of the PMMA/PMAA copolymers before the H2O/Ar rf-plasma treatment was employed. The ESCA, ISS, and FTIR analysis of these modified PMMA/PMAA copolymers show that surface modification over a limited depth (50–200 Å) has occurred. The composition, bonding, and functionality changes of the surfaces are discussed. A two-step modification mechanism (surface reduction of the PMMA/PMAA copolymer followed by H2O adsorption) is proposed to interpret the spectroscopic results.

Type
Articles
Information
Journal of Materials Research , Volume 2 , Issue 1 , February 1987 , pp. 132 - 142
Copyright
Copyright © Materials Research Society 1987

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References

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