The ecology of environment nowadays

Surface pressure of monomolecular recordings

on an interface a water-air

and compatibility of polymers

I.Ye. Opaynych, I.I. Maleyev

Department of Colloidal Chemistry, Lviv Ivan Franko National University,

Kyryla i Mephodia st. 6, 79005 Lviv, Ukraine,

e-mail:opaynych@galca.lviv.ua

The method of monolayers allows investigating mixtures of polymers in a two-dimensional condition. The objects of a research selected systems consisting of binary mixtures of polymers of ethers of a methacrylic acid with a polymethacrylate. On isotherms of surface pressure the diagrams of a condition of dependence of squares of a monomer links for want of constant pressure and limiting significances of the squares appropriate to a mass unit of a mixed monolayer, from structure are constructed. In the researched ones there are observed both positive, and negative deviations from additivity. In the field of the small contents of a polymethacrylate the magnification of square appropriate mass unit of a monolayer takes place. We connect this phenomenon with incompatibility of polymers, which results in shaping a heterogeneous monofull-sphere.

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