Influence of the composition of acrylamide–acrylonitrile–2-acrylamido-2-methylpropanesulfonic acid terpolymer on its resistance to high temperatures and salts


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The influence of the ratio of the acrylamide, acrylonitrile, and 2-acrylamido-2-methylpropanesulfonic acid monomeric units in the terpolymer on its resistance to elevated temperatures and sensitivity to calcium salts was studied. The influence of the terpolymer composition on the chemical transformations occurring under the conditions of thermal and hydrothermal treatment was studied by TGA and IR spectroscopy. The degree of hydrolysis of the terpolymers influences their resistance to CaCl2. The resistance of the terpolymers to CaCl2 additions at their concentrations of up to 7 wt % is preserved at the content of 2-acrylamido-2-methylpropanesulfonic acid units higher than 20 mol %. The revealed features allow optimization of the structure of polymer systems used in drilling lubricants.

Sobre autores

A. Nechaev

Institute of Technical Chemistry, Ural Branch

Email: irene.i.lebedeva@gmail.com
Rússia, ul. Akademika Koroleva 3, Perm, 614013

I. Lebedeva

Institute of Technical Chemistry, Ural Branch

Autor responsável pela correspondência
Email: irene.i.lebedeva@gmail.com
Rússia, ul. Akademika Koroleva 3, Perm, 614013

V. Val’tsifer

Institute of Technical Chemistry, Ural Branch

Email: irene.i.lebedeva@gmail.com
Rússia, ul. Akademika Koroleva 3, Perm, 614013

V. Strel’nikov

Institute of Technical Chemistry, Ural Branch

Email: irene.i.lebedeva@gmail.com
Rússia, ul. Akademika Koroleva 3, Perm, 614013

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