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Your search keyword '"*RELAXATION phenomena"' showing total 3 results
Start Over Descriptor "*RELAXATION phenomena" Language ukrainian
3 results on '"*RELAXATION phenomena"'

1. Water dispersing ionic polyurethanes with crown -- ether fragments in the chain.

Author

Travinskaya, T. V., Brykova, A. N., Babkina, N. V., and Savelyev, Yu. V.

Subjects
*WATER, *POLYURETHANES, *AQUEOUS solutions, *POLYMERIZATION, *MOLECULAR structure, *RELAXATION phenomena, *THIN films
Abstract

New film -- forming aqueous dispersions of anionic polyurethanes with crown ether fragments in macrochain (CIPU) have been synthesized. The effect of the structure of the crown ether fragments (CE) on the properties of dispersions and films, their relaxation behavior, thermal physical parameters and the degree of microphase separation has been studied using complex of methods. [ABSTRACT FROM AUTHOR]

Published
2012

2. The thermomechanical properties of nanocomposites of contents EP-3%CdO and EP-3% (CdO +PAn), hardened in constant magnetic or electrical fields.

Author

Vilensky, V. O., Bardadym, Yu. V., Yurzhenko, M., and Zagorny, M. M.

Subjects
*POLYANILINES, *NANOCOMPOSITE materials, *CADMIUM oxide, *MAGNETIC fields, *ELECTRIC fields, *MECHANICAL properties of polymers, *RELAXATION phenomena
Abstract

The nanocomposites on the base of polyepoxy, CdO and polyaniline in dependence of its content and conditions of caring have been studied by methods of laser granulomerty and thermomechanical analysis. It was shown that nanocomposites are differ by energetic threshold of beginning process segmental relaxation, energy Tg activation and mechanical characteristics. [ABSTRACT FROM AUTHOR]

Published
2012

3. Peculiarities of the relaxation processes in PPG-CNT system near percolation threshold.

Author

Lysenkov, E. A., Yakovlev, Y. V., and Klepko, V. V.

Subjects
*POLYPROPYLENE, *RELAXATION phenomena, *PERCOLATION, *IMPEDANCE spectroscopy, *DIELECTRICS, *CARBON nanotubes, *ELECTRIC conductivity
Abstract

By method of impedance spectroscopy the dielectric properties of polypropylene glycol with Mw=400 (PPG-400) and carbon nanotubes(CNT) in percolation transition field were investigated. At the defined concentration CNT ~0.45% in the PPG-400/CNT system the percolation threshold was observed and both sharp change of electrical conductance and α-relaxation time was appeared. [ABSTRACT FROM AUTHOR]

Published
2012

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