Molecular Surface Analysis and Depth-Profiling of Polyethylene Modified by an Atmospheric Ar-D2O Post-Discharge
(2016) Plasma Processes and Polymers — Vol. 13, n° 11, p. 1106-1119 (2016)
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- Abstract
- The injection of water vapor into ambient “open air” plasmas for the treatment of polymers represents a promising functionalization route for industrial and medical applications. The present study reports a scientist-independent methodology, based on the ToF-SIMS (time-of-flight secondary ion mass spectrometry) technique coupled with PCA/Wavelet-PCA (principal component analysis), to probe the (sub) surface chemical/structural modifications induced by an atmospheric Ar-D2O post-discharge on low density polyethylene (LDPE) films as a function of two external plasma parameters, namely sample-torch distance and treatment time. The SIMS characterization identifies two different families of samples (type I and II) as a function of time and distance. The highest reactivity of the D2O vapors with the LDPE films is achieved for times of few tens of seconds at a distance of 5 mm from the plasma source.
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Cristaudo, V., Collette, S., Tuccitto, N., Poleunis, C., Melchiorre, L. C., Licciardello, A., Reniers, F., & Delcorte, A. (2016). Molecular Surface Analysis and Depth-Profiling of Polyethylene Modified by an Atmospheric Ar-D2O Post-Discharge. Plasma Processes and Polymers, 13(11), 1106-1119. https://doi.org/10.1002/ppap.201600061 (Original work published 2016)