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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">ikbgu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Кабардино-Балкарского государственного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Kabardino-Balkarian State University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2221-7789</issn><publisher><publisher-name>Kabardino-Balkarian State University named after Kh. M. Berbekov</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">ikbgu-288</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Физика</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Physics</subject></subj-group></article-categories><title-group><article-title>УРАВНЕНИЯ СОСТОЯНИЯ ПОЛИМЕРНЫХ МАТЕРИАЛОВ</article-title><trans-title-group xml:lang="en"><trans-title>EQUATIONS OF STATE OF POLYMERS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кунижев</surname><given-names>Борис Иналович</given-names></name><name name-style="western" xml:lang="en"><surname>Kunizhev</surname><given-names>Boris Inalovich</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Торшхоева</surname><given-names>Зейнап Султановна</given-names></name><name name-style="western" xml:lang="en"><surname>Torshchoeva</surname><given-names>Zeynap Sultanovna</given-names></name></name-alternatives><email xlink:type="simple">torshhoeva.zina@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полонкоева</surname><given-names>Малика Муссаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Polonkoeva</surname><given-names>Malika Mussaevna</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иналова</surname><given-names>Зарема Исмелхановна</given-names></name><name name-style="western" xml:lang="en"><surname>Inalova</surname><given-names>Zarema Ismelkhanovna</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Кабардино-Балкарский государственный университет им. Х.М. Бербекова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kabardino-Balkarian State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Ингушский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ingush State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>30</day><month>08</month><year>2022</year></pub-date><volume>12</volume><issue>4</issue><issue-title>Том 12, № 4 (2026)</issue-title><fpage>26</fpage><lpage>30</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кунижев Б.И., Торшхоева З.С., Полонкоева М.М., Иналова З.И., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Кунижев Б.И., Торшхоева З.С., Полонкоева М.М., Иналова З.И.</copyright-holder><copyright-holder xml:lang="en">Kunizhev B.I., Torshchoeva Z.S., Polonkoeva M.M., Inalova Z.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.izvestiakbsu.ru/jour/article/view/288">https://www.izvestiakbsu.ru/jour/article/view/288</self-uri><abstract><p>Взаимосвязь основных термодинамических параметров состояния полимеров определяется уравнением состояния. В работе рассматривается модифицированное уравнение Ван-дер-Ваальса. Приводятся значения параметров, входящих в это уравнение, для некоторых полимеров. Определена зависимость удельного объема полимера от температуры для аморфных (некристаллизующихся), кристаллических и аморфно-кристаллических полимеров.</p></abstract><trans-abstract xml:lang="en"><p>The relationship between the main thermodynamic parameters of the state of polymers is determined by the equation of state. The paper considers a modified van der Waals equation. The values of the parameters included in this equation are given for some polymers. The dependence of the specific polymer volume on temperature for amorphous (non-crystallizing), crystalline, and amorphous-crystalline polymers has been determined.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>уравнение состояния</kwd><kwd>полимеры</kwd><kwd>удельный объём</kwd><kwd>полиэтилен</kwd><kwd>полистирол</kwd></kwd-group><kwd-group xml:lang="en"><kwd>equation of state</kwd><kwd>polymers</kwd><kwd>specific volume</kwd><kwd>polyethylene</kwd><kwd>polystyrene</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Костин В.В., Кунижев Б.И., Красюк И.К., Темроков А.И. Исследование ударноволновых и деструкционных процессов при высокоскоростном ударе и лазерном воздействии на мишень из органического стекла // ТВТ. 1997. Т. 33, № 6. С. 962–967.</mixed-citation><mixed-citation xml:lang="en">Kostin V.V., Kunizhev B.I., Krasyuk I.K., and Temrokov A.I. 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