Dynamic surface properties of carboxyfullerene solutions

被引：3
作者：
Timoshen, K. A. [1 ]
Khrebina, A. D. [1 ]
Lebedev, V. T. [2 ]
Loglio, G. [3 ]
Miller, R. [4 ]
Sedov, V. P. [2 ]
Noskov, B. A. [1 ]
机构：
[1] St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
[2] BP Konstantinov Petersburg Nucl Phys Inst, NRC Kurchatov Inst, Gatchina 188300, Russia
[3] Inst Condensed Matter Chem & Technol Energy, I-16149 Genoa, Italy
[4] Tech Univ Darmstadt, Inst Condensed Matter Phys, D-64289 Darmstadt, Germany
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2023年 / 372卷
基金：
俄罗斯科学基金会;
关键词：
Fullerene; Fullerene derivatives; Carboxyfullerene; Water; air interface; Insoluble multilayers; Dilatational surface rheology; WATER-SOLUBLE FULLERENES; PHYSICOCHEMICAL PROPERTIES; INHIBITION; CELLS; ANTIOXIDANTS; DERIVATIVES; MORPHOLOGY; MEMBRANES; LANGMUIR; LAYERS;
D O I：
10.1016/j.molliq.2022.121174
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Application of conventional methods of dilatational surface rheology in combination with optical tech-niques and atomic force microscopy allowed determination of the surface properties of a water-soluble fullerene derivative, carboxyfullerene C60(C(COOH)2)3. It has been shown that the surface activity of this derivative is higher than that of other soluble fullerene derivatives, for example, of fullerenols. The dynamic surface elasticity of carboxyfullerene solutions reaches up to values of about 180 mN/m. Brewster angle microscopy indicates a liquid-like nature of carboxyfullerene adsorption layers. The appli-cation of atomic force microscopy shows that these adsorption layers consist of numerous interconnected surface aggregates. The size and number of aggregates increase during adsorption. The compression of carboxyfullerene spread layers results in its partial dissolution. At the same time, the compression iso-therms indicate a high stability of the layers of carboxyfullerene aggregates.(c) 2022 Elsevier B.V. All rights reserved.
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页数：7
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