ISSN:
0887-6266
Keywords:
actinometric optical emission spectrometry
;
plasma/surface interactions
;
nitrogenated plasma polymers
;
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
An actinometric optical emission spectroscopy (AOES) study of the trends in the concentrations of the plasma species H, CH, CO, OH, and CN in film-producing glow discharges of mixtures of isopropanol and nitrogen was undertaken. Conventional AOES was used to obtain the trends in the plasma concentrations of these species as a function of the proportion of nitrogen in the feed, Rn. A dynamic variant of actinometry in which trends in the concentrations of plasma species are measured as a function of time following the cutting of one of the principal gas flows was also employed to investigate the relative importance of gas phase and plasma/polymer-surface interactions in the production of the species of interest. Each of the above-mentioned species is produced, to some degree, by plasma/polymer-surface reactions. As revealed by transmission infrared spectroscopy, the films deposited contain C—H, C=O, and O—H groups. For Rn 〉 0, the films become nitrogenated, with both N—H and C≡N groups being present. As revealed by transmission ultraviolet-visible spectroscopy, both the optical gap and the refractive index of the deposited films decrease as Rn is increased. © 1998 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 36: 1881-1888, 1998
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
