Yu. G. Bogdanova, V. D. Dolzhikova, Z. S. Klemenkova, V. S. Romanova, G. I. Timofeeva, G. N. Bogdanov, A. E. Kharlov Adsorption modifying of solids with aqueous solutions of derivatives of fullerene C60 containing of maleimide and dipeptide addendes Abstract The regularities of adsorption modifying of different solid surfaces with aqueous solutions of fullerene C60 derivatives (FD) containing maleimide and dipeptide addends were studied by quartz crystal microbalance method and contact angle measurements. In spite of the absence of surface activity at the solution-vapor interface the high adsorption activity of FD at the solution-solid interface was founded. With respect to high energy solids the FD behavior are similar to one for ionic surfactants with polar groups charged opposite to solid. The adsorption modifying of polymer surfaces leads to its hydrophilization so as classic low-molecular surfactants. The highest modifying effect with respect to high- and low energy solids is observed for FD with least solubility in aqueous phase.Key words: fullerene C60 derivatives, adsorption, wetting, quartz crystal microbalance.
Copyright (C) Chemistry Dept., Moscow State University, 2002 |
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