Descriptor: "VISCOELASTICITY" / Language: russian / Publication Year Range: Last 50 years / Search Limiters: Available in Library Collection - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"VISCOELASTICITY"' showing total 4 results

Start Over Descriptor "VISCOELASTICITY" Search Limiters Available in Library Collection Publication Year Range Last 50 years Language russian

Author: Kosyanchuk, L. F., Babkina, N. V., Yarova, N. B., Todosiichuk, T. T., and Getmanchuk, I. P.
Subjects: *THERMAL properties of polymers, *VISCOELASTICITY, *POLYURETHANES, *POLYSTYRENE, *ADDITION polymerization, *POLYMER blends, *CHEMICAL kinetics, *PHASE partition
Abstract: The thermophysical and viscoelastic properties of blends of linear polymer PU and PS formed in situ at various initial components ratio and kinetic conditions of their formation have been studied. Comparison with the same properties of PU-PMMA blends with the identical nature of poly(urethane) component has been done. It is shown that the phase structure of blends of linear polymers formed in situ substantially is defined by the chemical nature of the component formed by radical polymerisation that is caused by it's various compatibility with PU component. [ABSTRACT FROM AUTHOR]
Published: 2011

Subjects: *VISCOELASTICITY, *SILICA, *NANOCOMPOSITE materials, *ANHYDRIDES, *GELATION, *EPOXY resins, *STRENGTH of materials
Published: 2010

Author: Novikov, V. V., Friedrich, Chr., and Shpikina, N. O.
Subjects: *VISCOELASTICITY, *NANOCOMPOSITE materials, *POLYMERIC composites, *ITERATIVE methods (Mathematics), *PARTICLES, *QUANTITATIVE chemical analysis
Abstract: Viscoelastic properties of the filled polymeric composites taking into account influence on them of an interphase layer (polymer which has changed the properties as a result of interaction with a surface of filler particles) are defined. Effective viscoelastic properties of the filled polymeric materials were defined by means of an iterative method of the averaging based on the idea of renormal group transformation. Comparison of calculation with experimental data which shows on their good enough the coordination is spent. The analysis of influence of an interphase layer and the size of filler particles on viscoelastic properties of the filled polymeric composites is carried out. Quantitative estimations of properties of an interphase layer which have shown on their essential difference from properties of polymer are received. [ABSTRACT FROM AUTHOR]
Published: 2009

Author: Brovko, O. O., Gorbach, L. A., and Sergeeva, L. M.
Subjects: *POLYMER networks, *VISCOELASTICITY, *ANISOTROPY, *ACRYLATES, *GLASS transition temperature, *CHEMICAL properties, *IMITATIVE behavior, *CRYSTALLOGRAPHY
Abstract: Viscoelastic properties both traditional and gradient polyurethane-polyacrylate IPNs were studied. Both types of IPNs were shown to be two-phase systems inclusive considerable interphase area. It was found that GIPNs were characterized by anisotropy of viscoelastic properties specified by different structure depending on the direction of concentration gradient of acrylate component and which possessed a broad glass transition interval that defined an ability of material to dissipate the mechanical energy. By using the model imitation method the system of questions describing the GIPN formation kinetic - gradient profile generation was proposed. Property-composition correlation dependences were found that allow one to realize the transfer from concentration gradient profiles to those of distribution of properties, in particular elastic modulus, within GIPN layers. [ABSTRACT FROM AUTHOR]
Published: 2009

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