Feature Papers

A special issue of Plasma (ISSN 2571-6182).

Deadline for manuscript submissions: closed (15 September 2018) | Viewed by 3696

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Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, NJ 08543, USA
Interests: plasma shape control; collisional energy transport; Ion power balance; high frequency alfvén waves; fast ion energy transfer; neoclassical tearing modes; fields errors; stellarator optimization
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Dear Colleagues,

We plan to publish a Special Issue on "Feature Papers" in order to give a broad overview of our area. We are looking for top-quality papers that will be published free of charge in open access. Authors will be the Editorial Board Members and researchers invited by the Editorial Office and the Editor-in-Chief. Papers could be both long research papers (or review papers) and papers describing the current state-of-the-art in one of the areas covered by the journal.

Dr. David A Gates
Guest Editor

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Published Papers (1 paper)

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Research

21 pages, 5895 KiB  
Article
Structure and Stability of C:H:O Plasma Polymer Films Co-Polymerized Using Dimethyl Carbonate
by Martin Drabik, Dominik Lohmann, Jan Hanus, Artem Shelemin, Patrick Rupper, Hynek Biederman and Dirk Hegemann
Plasma 2018, 1(1), 156-176; https://doi.org/10.3390/plasma1010015 - 23 Aug 2018
Cited by 4 | Viewed by 3322
Abstract
C:H:O plasma polymer films (PPFs) were deposited by means of plasma-enhanced chemical vapour deposition using the non-toxic, biodegradable organic compound dimethyl carbonate (DMC) at various plasma powers and pressures in order to control the degradation properties related to the carbonate ester group. Coating [...] Read more.
C:H:O plasma polymer films (PPFs) were deposited by means of plasma-enhanced chemical vapour deposition using the non-toxic, biodegradable organic compound dimethyl carbonate (DMC) at various plasma powers and pressures in order to control the degradation properties related to the carbonate ester group. Coating properties using pure DMC monomer vapours were compared to co-polymerized films from gaseous mixtures of DMC with either ethylene (C2H4) or carbon dioxide (CO2) affecting deposition rate and chemical composition. C:H:O film properties were found to depend primarily on the amount of oxygen in the plasma. To investigate the PPF stability during aging, changes in the composition and properties were studied during their storage both in air and in distilled water over extended periods up to 5 months. It was shown that aging of the films is mostly due to oxidation of the plasma polymer matrix yielding slow degradation and decomposition. The aging processes and their rate are dependent on the intrinsic amount of oxygen in the as-prepared C:H:O films which in turn depends on the experimental conditions and the working gas mixture. Adjustable film properties were mainly attained using a pure DMC plasma considering both gas phase and surface processes. It is thus possible to prepare C:H:O PPFs with controllable degradability both in air and in water. Full article
(This article belongs to the Special Issue Feature Papers)
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