Nonequilibrium plasma polymerization of HFC-134a in a dielectric barrier discharge reactor: Polymer characterization and a proposed mechanism for polymer formation

Sazal K. Kundu, Eric M. Kennedy, John C. MacKie, Clovia I. Holdsworth, Thomas S. Molloy, Vaibhav V. Gaikwad, Bogdan Z. Dlugogorski

Research output: Contribution to journalArticle

Abstract

Nonequilibrium plasma polymerization of hydrofluorocarbon HFC-134a CF3 CH2F in argon bath gas has been studied in a dielectric barrier discharge reactor at atmospheric pressure and in the absence of oxygen and nitrogen. The reaction resulted in the formation of a polymeric solid fraction and the noncrosslinked properties of this material assisted in its characterization by solution state 13C} and 19F nuclear magnetic resonance spectroscopy. Gel permeation chromatography revealed that the polymers include low (number average molecular weight, Mn values between 900 and 3000g~mol-1 and high (Mn approximately 60000 g~mol-1 molecular weight fractions. A detailed polymerization mechanism is proposed, based on the published literature and the findings of the current investigation.

Original languageEnglish
Article number6740081
Pages (from-to)3095-3100
Number of pages6
JournalIEEE Transactions on Plasma Science
Volume42
Issue number10
DOIs
Publication statusPublished - Oct 2014
Externally publishedYes

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