23 Result(s)

Article

Local mobility of micelles of new cationic surfactants and their interactions with hydrophobically modified polyacrylamides

The local dynamics and organization of micelles of new long-chain cationic surfactants with saturated hydrocarbon fragments (from C₁₆ to C₂₂) are investigated via the EPR spin-probe technique. The local mobility ...

A. M. Wasserman, M. V. Motyakin, L. L. Yasina, V. G. Vasil’ev… in Polymer Science Series A (2012)

Article

Effect of salts on local mobility and rheological properties of micelles of new long-chain surfactant

The effects of organic (sodium salicylate) and inorganic (KCl) salts on the rheological properties of micellar solutions and the local characteristics (local mobility and ordering) of micelle cores is studied ...

A. M. Vasserman, M. V. Motyakin, L. L. Yasina, V. G. Vasil’ev… in Colloid Journal (2011)

Article

Diversity of polymer gels and the main factors determining the properties of gels and related solid polymers

This paper is a survey of the authors’ main results on the properties and structure of polymer gels of diverse nature that are related to the ideas of S.P. Papkov and G.V. Vinogradov. The properties of physica...

L. Z. Rogovina, V. G. Vasil’ev in Polymer Science Series A (2010)

Article

Local dynamics of micelles of new long-chain surfactants in aqueous media

The molecular dynamics, organization, and phase state of aqueous solutions of new long-chain cationic surfactants with saturated hydrocarbon radicals (from C₁₆ to C₂₂) containing one or two hydroxyl groups in the...

M. V. Motyakin, L. L. Yasina, A. M. Wasserman, L. Z. Rogovina… in Colloid Journal (2010)

Article

Local mobility and rheological characteristics of gels based on hydrophobically modified poly(acrylamides)

For hydrophobically modified poly(acryl amide), we analyze the effect of various parameters of the macromolecular structure (number and length of side hydrophobic groups, content of charged groups, type of bon...

A. M. Wasserman, L. Z. Rogovina, V. G. Vasil’ev… in Polymer Science Series A (2009)

Article

Definition of the concept of polymer gel

The current ideas concerning polymer gels are outlined. The following definition of gel is proposed: a gel is a solid composed of at least two components, one of which (polymer) forms a three-dimensional netwo...

L. Z. Rogovina, V. G. Vasil’ev, E. E. Braudo in Polymer Science Series C (2008)

Article

Rheological properties of solutions and gels of combined systems hydrophobically modified polyacrylamides-new viscoelastic cationic surfactants

The rheological properties (viscosity and dynamic elasticity modulus) of solutions and gels of combined systems composed of hydrophobically modified polymers containing main-chain charged groups or lacking the...

L. Z. Rogovina, V. G. Vasil’ev, V. N. Matveenko… in Polymer Science Series A (2007)

Article

Molecular-mass characteristics and association behavior of weakly charged hydrophobically modified poly(acrylamides)

The evolution of compositional heterogeneity and molecular-mass distribution in the course of micellar polymerization of weakly charged hydrophobically modified poly(acrylamides) has been studied. The relation...

I. V. Blagodatskikh, O. V. Vasil’eva, T. A. Pryakhina… in Polymer Science Series A (2007)

Article

Conductivity of nonaqueous solutions of aromatic polymers containing ionizable side groups

The concentration dependence of the equivalent conductivity has been measured for dilute DMAc solutions of K, Na, and Li salts of aromatic polymers with ionizable side groups [poly(diphenylenesulfophthalide) a...

L. Z. Rogovina, G. G. Nikoforova, A. T. Ponomarenko… in Polymer Science Series A (2006)

Article

Local mobility in network junctions of gels based on hydrophobically modified polyacrylamides

Spin-probe ESR spectroscopy is employed to study the local mobility in junctions of physical networks in gels of hydrophobically modified polyacrylamides. These junctions are formed owing to self-association o...

M. V. Motyakin, L. L. Yasina, N. A. Churochkina, V. G. Vasil’ev… in Polymer Science Series B (2006)

Article

Dynamic mechanical and thermal characteristics of homopolymers and copolymers containing arylene ether ketone units with carboxylic side groups and their salts

Properties of a poly(arylene ether ketone) with carboxyl side groups, copolymers containing units of this homopolymer, and their salts with different degrees of neutralization by alkali metals were studied by ...

G. G. Nikiforova, M. I. Buzin, V. G. Vasil’ev, M. N. Il’ina… in Polymer Science Series A (2006)

Article

Rheology of Hydrophobically Modified Polymers

A study has been made of the rheological characteristics of the aqueous and water‐salt solutions and gels of one class of hydrophobically modified polymers: acrylamide copolymers with a hydrophobic monomer whi...

L. Z. Rogovina, V. G. Vasil'ev… in Journal of Engineering Physics and Thermop… (2003)

Article

Poly(diphenylene Sulfophthalide) Derivatives with Polyelectrolyte and Specific Optical Properties

V. G. Vasil'ev, G. G. Nikiforova, L. Z. Rogovina… in Doklady Physical Chemistry (2002)

Article

Possibilities of using electrostriction for contactless deformation, evaluation of relaxation parameters, and structural changes in viscous and elastoviscous composite polymer systems

L. Z. Rogovina, V. G. Vasil'ev, G. L. Slonimskii… in Mechanics of Composite Materials (1993)

Article

Regulation of the viscoelastic properties of cross-linked siloxane polymers by alteration of the chemism and conditions of network formation

L. Z. Rogovina, V. G. Vasil'ev, G. L. Slonimskii in Mechanics of Composite Materials (1988)

Article

Low-modulus siloxane-base composite models and possibility of using them in the photoelastic method

N. I. Malkis, L. Z. Rogovina, V. G. Vasil'ev… in Mechanics of Composite Materials (1987)

Article

New acrylamide- and siloxane-based materials for photomechanical methods

N. I. Malkis, L. Z. Rogovina, V. G. Vasil'ev, G. L. Slonimskii… in Soviet mining science (1986)

Article

Diffusion spin echo decay by pulsed magnetic field gradient NMR and some structure features in blockcopolymer solutions

Blockcopolymer solutions were investigated by pulsed field gradient NMR. Nonexponential diffusion decay of solvent molecules and the dependence of it's shape on time of observation uere found out. These featur...

F. A. Grinberg, V. D. Scirda, N. F. Fatkullin, A. I. Maklakov… in Polymer Bulletin (1985)

Article

Low-modular materials based on dimethyldiphenylsiloxanes and scope of their use for photomechanical simulation of stressed state

L. Z. Rogovina, A. S. Shapatin, N. I. Malkis, V. G. Vasil'ev… in Soviet mining science (1983)

Article

Preparation of photoelastic polymeric materials with increased brittleness and investigation of their properties

I. I. Malkis, L. Z. Rogovina, G. L. Slonimskii, V. G. Vasil'ev in Polymer Mechanics (1978)