TITLE

Introduction of Primary Amino Groups on Poly(ethylene terephthalate) Surfaces by Ammonia and a Mix of Nitrogen and Hydrogen Plasma

AUTHOR(S)
Casimiro, Jessie; Lepoittevin, Bénédicte; Boisse-Laporte, Caroline; Barthés-Labrousse, Marie-Geneviève; Jegou, Pascale; Brisset, François; Roger, Philippe
PUB. DATE
April 2012
SOURCE
Plasma Chemistry & Plasma Processing;Apr2012, Vol. 32 Issue 2, p305
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
With the aim of introducing primary amino groups on the surface of poly(ethylene terephthalate) (PET), two methods were compared-the use of ammonia or a combination of nitrogen and hydrogen low-pressure microwave plasma. Several plasma parameters were optimized on the reactor to increase the -NH surface density, which was estimated by colorimetric titration and X-ray photoelectron spectroscopy (XPS). These techniques show that whatever the plasma treatment, almost 2 -NH/nm² are incorporated on PET films. Emission spectroscopy highlighted a correlation between the density of primary amino groups and the ratio between an NH peak intensity and an Ar peak intensity (I/I). Variation in surface hydrophilicity with aging in air after plasma treatment was monitored with contact angle measurements and showed a hydrophobic recovery. This was confirmed by XPS, which suggests also that surfaces treated by NH plasma are more stable than surfaces treated by N/H.
ACCESSION #
73363418

 

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics