Abstract

Thin films containing carboxylic acid groups are deposited from mixtures of helium, acrylic acid, and ethylene using an atmospheric pressure cold plasma jet in dielectric barrier discharge (DBD) configuration. The influence of the feed gas composition on the properties of the deposits is investigated. As assessed by X-ray photoelectron spectroscopy (XPS), the oxygen atomic concentration of the coatings as well as the percentage of the XPS C1s component ascribed to carboxylic groups (i.e., COOH and COOR moieties) increase with the acrylic acid concentration in the feed gas. On the other hand, ethylene addition enhances the deposition rate, reduces the carboxylic groups content of the coatings, and significantly improves their chemical and morphological stability upon immersion in water for 72h. The surface concentration of COOH groups before and after immersion in water is determined by chemical derivatization in conjunction with XPS.

Autore Pugliese

• Fanelli Fiorenza

Tutti gli autori

• Bosso P.; Fanelli F.; Fracassi F.

Titolo volume/Rivista

Plasma processes and polymers

Anno di pubblicazione

2015

ISSN

1612-8869

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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