Citation
Muir, B. W.; McArthur, S. L.; Thissen, H.; Simon, G. P.; Griesser, H. J.; & Castner, D. G. (2006).
Effects of oxygen plasma treatment on the surface of bisphenol A polycarbonate: a study using SIMS, principal component analysis, ellipsometry, XPS and AFM nanoindentation.
Surface and Interface Analysis, 38(8), 1186-1197.
Abstract
The effects of oxygen plasma treatment and the subsequent air exposure on the surface composition and properties of bisphenol A polycarbonate (BPA-PC) were analysed by X-ray photoelectron spectroscopy (XPS), ellipsometry, static time-of-flight secondary ion mass spectrometry (ToF-SIMS) with principal component analysis (PCA) and nanoindentation using an atomic force microscope (AFM). PICA showed systematic changes in the film chemistry after short treatment times (0.1 s), with the main sites of attack being the carbonate and aromatic ring structure. On the basis of this multitechnique analysis, it was unambiguously determined that extended oxygen plasma treatment times resulted in the formation of low-molecular-weight material (LMWM) within the first 50 nm on the surface, and not in a cross-linked skin as has been proposed by other researchers. The study shows that controlled surface modification of BPA-PC polymers is possible, allowing surface oxygen incorporation without degradation of the polymer structure. This result is relevant for improved adhesion of coatings applied to BPA-PC polymers. Copyright (C) 2006 John Wiley & Sons, Ltd.
Keyword(s)
argon plasmaelastic-modulusimproved adhesionin-situ spectroellipsometryion mass-spectrometrylow-pressure plasmasoxygen plasmapolycarbonatepolymer surfaceprincipal component analysisSIMSsurface modificationthin-filmstof-simsuv-radiation
Reference Type
Journal Article
Secondary Title
Surface and Interface Analysis
Author(s)
Muir, B. W.McArthur, S. L.Thissen, H.Simon, G. P.Griesser, H. J.Castner, D. G.
Year Published
2006
Date Published
1154390400
Volume Number
38
Issue Number
8
Pages
1186-1197
DOI
Doi 10.1002/Sia.2363
