2015 (1) 4

https://doi.org/10.15407/polymerj.37.01.027

The effect of molecular weight on the kinetics of nanolayers formation under adsorption of the mixtures of nonpolar polymers

V.N. Chornaya, G.Y. Menzheres, T.T. Todosiichuk

Institute of Macromolecular Chemistry NAS of Ukraine

48, Kharkivske shose, Kyiv, 02160, Ukraine

Polym. J., 2015, 37, no. 1: 27-33.

Section: Structure and properties.

Language: Russian.

Abstract:

Kinetics of adsorption from the solutions of nonpolar polymer mixtures was studied by IR-spectroscopy under the changing of molecular weight of the polymer components. It was shown that value of adsorption, energy of adsorption interaction, and heat of adsorption decreases with the increasing of polymer chain length, which indicates a deterioration of adsorbent macromolecules affinity to the surface with the increasing of their molecular weight. The separate adsorptive interactions were registered in the IR spectra for each mixture component in the region of valence vibrations of the hydroxyl groups of adsorbent (aerosil. The intensity of these interactions diminishes with the increasing of the molecular weight.

Keywords: adsorption kinetics, solutions of polymer mixtures, molecular weight, adsorption nanolayers.

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