From Chemistry Towards Technology Step-By-Step From Chemistry Towards Technology Step-By-Step От химии к технологии шаг за шагом 2782-1900 81647 10.52957/27821900_2022_04_71 Научные статьи Scientific articles Научные статьи The calculation of solubility parameters of butadiene nitrile rubbers by the group additivity method The calculation of solubility parameters of butadiene nitrile rubbers by the group additivity method https://orcid.org/0000-0002-8840-248X Соловьев Михаил Евгеньевич Soloviev Mikhail Evgen'evich

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 https://orcid.org/0000-0002-2970-6109 Каблов Виктор Федорович Kablov Viktor F. vkablov5@gmail.com

доктор технических наук;

doctor of technical sciences;

 Соловьева Ольга Юрьевна Solovyeva Olga Yuryevna

кандидат технических наук;

candidate of technical sciences;

 Шульмин Сергей Николаевич Shulmin Sergey Nikolaevich Орлова Елизавета Николаевна Orlova Elizaveta Nikolaevna Ярославский государственный технический университет Ярославль Россия Ярославский государственный технический университет Ярославль Russian Federation Волжский политехнический институт филиал Волгоградского государственного технического университета Volzhsky Polytechnic Institute, branch of the Volgograd State Technical University Ярославский государственный технический университет Yaroslavl State Technical University 23 12 2022 23 12 2022 3 4 71 79 21 11 2022 09 12 2022 https://chemintech.ru/en/nauka/article/81647/view

Butadiene Nitrile Rubber (BNR) is a special purpose elastomer with an increased resistance to aliphatic hydrocarbon solvents, oils, and fuels. Depending on the monomer ratio of the butadiene-nitrile copolymers, their compatibility with different types of solvents and plasticisers varies considerably. In additional, BNRs with carboxyl, hydroxyl and hydrogenated BNRs are industrially available. The purpose of the study was to calculate the solubility parameters of different compositions of BNRs copolymers, hydrogenated BNRs, and rubbers with hydroxyl and carboxyl groups. We calculated the increments of the functional groups of copolymers under study and the molecular attraction by the Small constants. The calculations based on the processing of reference data on the enthalpies of evaporation and molar volume of aliphatic and aromatic hydrocarbons, nitriles, acids, alcohols, and esters. Also we used the increments obtained to calculate three dimensional solubility parameters of the copolymers as well as the dependencies of the change in Gibbs free energy at mixing on the solvent volume fraction for the two types of solvents.

Butadiene Nitrile Rubber (BNR) is a special purpose elastomer with an increased resistance to aliphatic hydrocarbon solvents, oils, and fuels. Depending on the monomer ratio of the butadiene-nitrile copolymers, their compatibility with different types of solvents and plasticisers varies considerably. In additional, BNRs with carboxyl, hydroxyl and hydrogenated BNRs are industrially available. The purpose of the study was to calculate the solubility parameters of different compositions of BNRs copolymers, hydrogenated BNRs, and rubbers with hydroxyl and carboxyl groups. We calculated the increments of the functional groups of copolymers under study and the molecular attraction by the Small constants. The calculations based on the processing of reference data on the enthalpies of evaporation and molar volume of aliphatic and aromatic hydrocarbons, nitriles, acids, alcohols, and esters. Also we used the increments obtained to calculate three dimensional solubility parameters of the copolymers as well as the dependencies of the change in Gibbs free energy at mixing on the solvent volume fraction for the two types of solvents.

 butadiene nitrile rubbers solubility parameters group additivity method

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