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journal article·2019-03-12

Dynamic Surface Properties of Fullerenol Solutions

Boris A. Noskov, Kirill A. Timoshen, Alexander V. Akentiev, Nikolay S. Chirkov, Ignat M. Dubovsky, Vasyli T. Lebedev, Shi-Yow Lin, Giuseppe Loglio, Reinhard Miller, Victor P. Sedov, Alina A. Borisenkova

Langmuir· Volume 35· Issue 10
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Source abstract

Abstract

Application of dilational surface rheology, surface tensiometry, ellipsometry, Brewster angle, and transmission electron and atomic force microscopies allowed the estimation of the structure of the adsorption layer of a fullerenol with a large number of hydroxyl groups, C60(OH)X (X = 30 ± 2). The surface properties of fullerenol solutions proved to be similar to the properties of dispersions of solid nanoparticles and differ from those of the solutions of conventional surfactants and amphiphilic macromolecules. Although the surface activity of fullerenol is not high, it forms adsorption layers of high surface elasticity up to 170 mN/m. The layer consists of small interconnected surface aggregates with the thickness corresponding to two–three layers of fullerenol molecules. The aggregates are not adsorbed from the bulk phase but formed at the interface. The adsorption kinetics is controlled by an electrostatic adsorption barrier at the interface.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersNanomaterials

OpenAlex topics: Fullerene Chemistry and Applications · Carbon Nanotubes in Composites · Phase Equilibria and Thermodynamics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia

B.P. Konstantinov Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Leningrad, Russia

Chemical Engineering Department, National Taiwan University of Science and Technology, 43 Keelung Road, Section 4, 106 Taipei, Taiwan

Institute of Condensed Matter Chemistry and Technologies for Energy, 16149 Genoa, Italy

MPI für Kolloid- und Grenzflächenforschung, Wissenschaftspark Golm, D-14424 Golm, Germany

Funding

Russian Foundation for Basic Research

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