Thermal destruction of polymer-salt compositions containing d-metals in the form of oxygen-bearing anions / Ostroushko AA,Mogil'nikov YV,Popov KA // INORGANIC MATERIALS. - 2000. - V. 36, l. 6. - P. 603-611.

ISSN/EISSN:

0020-1685 / нет данных

Type:

Article

Abstract:

The behavior of polymer-salt compositions consisting of water-soluble nonionogenic polymers and salts containing d-metal-oxygen anions was studied in the range 20-700 degrees C by thermal analysis, conductometry, optical microscopy, x-ray diffraction, and dilatometry. The salts used were ammonium heptamolybdate, ammonium B-paratungstate, and ammonium metavanadate and the polymers were poly(vinyl alcohol), polyvinylpyrrolidone, and methyl cellulose. The films prepared by drying the precursor compositions were found to retain, during heating, the polymer-salt molecular complexes formed at room temperature. The mechanism of the thermal destruction of the salts in the polymer-salt films was shown to differ from that in pure salts because, in the films, mutual stabilization of the polymer and salt took place. In the polymer-salt compositions, oxides were formed directly from amorphous precursors, without formation of intermediates, characteristic of the decomposition of pure salts. The oxides thus prepared consisted of fine particles and exhibited photochromic effect due to partial reduction of metal ions.

Author keywords:

нет данных

DOI:

10.1007/BF02757963

Web of Science ID:

ISI:000087712600015

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUN
Publisher	MAIK NAUKA/INTERPERIODICA
Address	C/O KLUWER ACADEMIC-PLENUM PUBLISHERS, 233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Number-of-Cited-References	26
Usage-Count-Since-2013	2
Journal-ISO	Inorg. Mater.
Doc-Delivery-Number	326BT