Temperature dependent elastic repulsion of colloidal nanoparticles with a polymer adsorption layer

Описание

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1007/s00396-018-4383-y

Ключевые слова: Adsorption layer, Coagulation kinetics, Elastic deformation, Elasticity modulus, Nanoparticle

Аннотация: The model of pairwise elastic repulsion of contacting colloidal nanoparticles with a rigid core and deformable shell is discussed. A simple analytical equation is applied for the energy of elastic repulsion of nanoparticles with arbitrary sizes and the elasticity moduli of self-healing polymer adsorption layers. The model is based Показать полностьюon the representation of the absorption layer as a continuous medium that is elastically deformed upon the contact of nanoparticles. The major characteristic of this medium is the elasticity modulus. The magnitude of the elasticity modulus is determined from the condition of balance of the van der Waals attractive forces of nanoparticles and the elastic repulsion of their adsorption layers in the contact area, taking into account the temperature variations. We employed the kinetic approach to describe the dependence of the elasticity modulus on both the temperature and the rate of its change. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.

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Издание

Журнал: Colloid and Polymer Science

Выпуск журнала: Vol. 296, Is. 10

Номера страниц: 1689-1697

ISSN журнала: 0303402X

Издатель: Springer Verlag

Авторы

  • Gavrilyuk A.P. (Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation, Institute of Mathematics and Computer Science, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation)
  • Gerasimov V.S. (Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation, Laboratory of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation)
  • Ershov A.E. (Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation, Laboratory of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation)
  • Karpov S.V. (Laboratory of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation, Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation, Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation)

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