Effect of the chemical nature of metal oxide on adhesion to the polyacrylate matrix in filled nanocomposites / Terziyan T. V.,Safronov A. P.,Petrov A. V.,Volodina N. S.,Beketov I. V. // RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A. - 2014. - V. 88, l. 8. - P. 1300-1306.

ISSN/EISSN:

0036-0244 / 1531-863X

Type:

Article

Abstract:

The morphology, particle size, and thermochemical properties of the surface of oxides Al2O3, NiO, TiO2, ZnO, and ZrO2 obtained by the wire electroexplosion method were studied. The nanoparticles are spherical, with a mean diameter of 54-86 nm depending on the nature of the oxide. The hydrophilicity of the surface of metal oxide nanopowders was found to change in the series NiO-ZrO2-TiO2-ZnO-Al2O3. Nanocomposites with widely varied compositions were obtained from butyl methacrylate copolymer with 5 wt \% methacrylic acid and the oxides under study. The enthalpies of dissolution of the composites in chloroform were determined by Calvet calorimetry. The enthalpies of copolymer mixing with oxides were calculated using the thermochemical cycle. The limiting enthalpies of copolymer adhesion to the oxide surface were calculated from the thermochemical data. The limiting adhesion enthalpy was shown to be negative for all oxides under study; these values decreased in magnitude as the surface hydrophilicity increased. The results were analyzed from the viewpoint of balance between the specific and dispersion interactions at the interface.

Author keywords:

metal oxides; wetting enthalpy; polymer composites; adhesion enthalpy ELECTRICAL EXPLOSION; FUEL-CELLS; COMPOSITES; POLYMER; NANOPARTICLES; NANOPOWDERS; POLYSTYRENE; MORPHOLOGY; ENTHALPY; TIO2

DOI:

10.1134/S0036024414060302

Web of Science ID:

ISI:000339899600006

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1531-863X
Keywords-Plus	ELECTRICAL EXPLOSION; FUEL-CELLS; COMPOSITES; POLYMER; NANOPARTICLES; NANOPOWDERS; POLYSTYRENE; MORPHOLOGY; ENTHALPY; TIO2
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Physical
Author-Email	Tatiana.terzian@urfu.ru
Funding-Acknowledgement	Russian Foundation for Basic Research {[}12-03-31417]
Funding-Text	This study was financially supported by the Russian Foundation for Basic Research, project no. 12-03-31417.
Number-of-Cited-References	27
Usage-Count-Since-2013	13
Journal-ISO	Russ. J. Phys. Chem. A
Doc-Delivery-Number	AM5LH