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Proceedings Paper

Technological methods of forming film sensors based on polyvinyl alcohol-heteropolyacid composites
Author(s): Tatjana G. Lazareva; Elena Vladimirov Vashuk; I. F. Alimov; Irina Aleksandro Il'yushchenko; A. Z. Makhover
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Paper Abstract

The influence of different factors (structure of a film-forming solution, the content ofa polymer, a method of introducing of a polyacid and its concentration, the moisture content of a film and heat treatment) on the formation of sensors based on polyvinyl alcohol (PVA)-heteropolyacid composites is examined. Such materials are sensitive to temperature and an electric field. Different sensitivity of films is associated with the formation of intermolecular complexes of different structure, including those containing water molecules. The complex fonnãtion depends on the process conditions. It is established that the complexation leads to the formation of associates and to an increase in the molecular mobility of macromolecules and their fragments. Rheological, optical and dielectric methods have been employed to evaluate the structure and properties of the thus obtained fluids and the films produced on their basis. Keywords: composites, complexes, associates, films, polyvinyl alcohol (PVA), heteropolyacids, sensors, technologies.

Paper Details

Date Published: 9 February 1996
PDF: 12 pages
Proc. SPIE 2716, Smart Structures and Materials 1996: Smart Materials Technologies and Biomimetics, (9 February 1996); doi: 10.1117/12.232148
Show Author Affiliations
Tatjana G. Lazareva, Institute of General and Inorganic Chemistry (Belarus)
Elena Vladimirov Vashuk, Institute of General and Inorganic Chemistry (Belarus)
I. F. Alimov, Institute of General and Inorganic Chemistry (Belarus)
Irina Aleksandro Il'yushchenko, Institute of General and Inorganic Chemistry (Belarus)
A. Z. Makhover, Institute of General and Inorganic Chemistry (Belarus)


Published in SPIE Proceedings Vol. 2716:
Smart Structures and Materials 1996: Smart Materials Technologies and Biomimetics
Andrew Crowson, Editor(s)

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