Measurement of Viscoelastic Characteristics of Interfacial Layers on Liquid Surfaces Using New Experimental Equipment
- Authors: Kulichikhin V.G.1, Malkin A.Y.1, Frenkin E.I.1, Semakov A.V.1
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Affiliations:
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
- Issue: Vol 81, No 6 (2019)
- Pages: 681-686
- Section: Article
- URL: https://journals.rcsi.science/1061-933X/article/view/204294
- DOI: https://doi.org/10.1134/S1061933X19060097
- ID: 204294
Cite item
Abstract
The viscoelastic characteristics (frequency dependences of the components of the two-dimensional complex dynamic modulus) of interfacial layers formed by polymer solutions on liquid surfaces are measured using a newly-designed instrument. The operation of the instrument is based on the use of a Langmuir trough and a new fast-response system for precise measurement of forces in a surface plane at Boussinesq numbers smaller than ten. Examples are presented to illustrate the abilities of the instrument: the measurement of dilatational dynamic elasticity moduli, the determination of the kinetic parameters of polymer solution spreading at interfaces, and the measurement of the moduli for layers of polymer solutions with different concentrations on solvent surfaces in compression–expansion cycles.
About the authors
V. G. Kulichikhin
Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Email: alex_malkin@mig.phys.msu.ru
Russian Federation, Moscow, 119991
A. Ya. Malkin
Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Author for correspondence.
Email: alex_malkin@mig.phys.msu.ru
Russian Federation, Moscow, 119991
E. I. Frenkin
Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Email: alex_malkin@mig.phys.msu.ru
Russian Federation, Moscow, 119991
A. V. Semakov
Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Email: alex_malkin@mig.phys.msu.ru
Russian Federation, Moscow, 119991
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