Zobrazeno 1 - 10
of 247
pro vyhledávání: '"G V Vinogradov"'
Publikováno v:
Journal of Polymer Science: Polymer Symposia. 42:1111-1115
It is shown that there is a critical concentration corresponding to the formation of a compact, fluctuating network, which results in a sharp change in the concentration dependence of the viscosity, first difference of normal stresses and high-elasti
Publikováno v:
Polymer Science U.S.S.R.. 33:983-986
The effect of hydrostatic pressure (up to 700 MPa) and of temperature (up to 600 K) on 1,4-polybutadiene has been investigated. Vulcanizates are obtainable with enhanced thermal stability and higher elastic moduli in the temperature range up to 600 K
Publikováno v:
International Journal of Polymeric Materials and Polymeric Biomaterials. 14:191-203
Investigation of glass transition temperature and viscosity of binary mixtures of poly(methyl metacrylate) with statistic copolymers of methyl metacrylate and ethyl, butyl or octyl metacrylates as well as mixtures of poly(methyl metacrylate) with pol
Publikováno v:
Rheologica Acta. 14:135-144
Viscoelastic properties of bitumens have been investigated under cyclic and continuous shear deformation and under the joint effect of both types of deformation. The experimental results indicate a similarity between the viscoelastic behaviour of bit
Publikováno v:
Polymer Science U.S.S.R.. 24:90-97
The strain and strength behaviour of a block copolymer has been studied for various regimes of uniaxial strain at temperatures below the glass transition temperature over a wide range of deformation rates, stresses and deformations. It was shown that
Publikováno v:
Polymer Science U.S.S.R.. 17:983-989
A study has been made of the viscosity and viscoelastic properties of mixtures of polybutadienes (PBD) of varying molecular weight with polyisoprene (PIP), the viscosity of which is equal to that of the high molecular PBD, and a di-block copolymer of
Publikováno v:
Polymer Science U.S.S.R.. 17:1581-1589
The effect of triethylene glycol and oligomer polyethylene and polypropylene glycols on viscosities of polyoxymethylene melts was studied by capillary viscometry. It was shown by structural investigations that glycols are a special group of solvents
Publikováno v:
Polymer Science U.S.S.R.. 16:510-518
A study was made of the viscosities of polyalkylacrylate (PA) and polyalkylmethacrylate (PMA) melts containing 4 to 18 carbon atoms in the side chain. It was shown that with an increase in the length of side branches, viscosity and any anomaly in vis
Autor:
G. V. Vinogradov, G. B. Froishteter
Publikováno v:
Rheologica Acta. 19:239-250
The present work offers an analysis of the regularities of the flow of plastic disperse systems (PDS) as applied to the Bulkley-Herschel three-constant rheological equation. Theoretical data on the velocity profile distribution have been confirmed by
Publikováno v:
Rheologica Acta. 20:433-442
This work summarizes the basic patterns of strainstrength behaviour of linear flexible-chain polymers at uniaxial extension. The boundaries of transition of non-cross-linked polymers under isothermal conditions from the fluid to the high-elastic and