Technological methods of forming film sensors based on polyvinyl alcohol-heteropolyacid composites

Tatjana G. Lazareva; Elena Vladimirov Vashuk; I. F. Alimov; Irina Aleksandro Il'yushchenko; A. Z. Makhover

doi:10.1117/12.232148

9 February 1996 Technological methods of forming film sensors based on polyvinyl alcohol-heteropolyacid composites

Tatjana G. Lazareva, Elena Vladimirov Vashuk, I. F. Alimov, Irina Aleksandro Il'yushchenko, A. Z. Makhover

Proceedings Volume 2716, Smart Structures and Materials 1996: Smart Materials Technologies and Biomimetics; (1996) https://doi.org/10.1117/12.232148
Event: 1996 Symposium on Smart Structures and Materials, 1996, San Diego, CA, United States

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.

Citation Download Citation

Tatjana G. Lazareva, Elena Vladimirov Vashuk, I. F. Alimov, Irina Aleksandro Il'yushchenko, and A. Z. Makhover "Technological methods of forming film sensors based on polyvinyl alcohol-heteropolyacid composites", Proc. SPIE 2716, Smart Structures and Materials 1996: Smart Materials Technologies and Biomimetics, (9 February 1996); https://doi.org/10.1117/12.232148

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