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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">plasticnews</journal-id><journal-title-group><journal-title xml:lang="ru">Пластические массы</journal-title><trans-title-group xml:lang="en"><trans-title>Plasticheskie massy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0554-2901</issn><publisher><publisher-name>PLASTMASSY Publishing House (Moscow)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35164/0554-2901-2026-02-13-16</article-id><article-id custom-type="elpub" pub-id-type="custom">plasticnews-1231</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>СИНТЕЗ И ТЕХНОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SYNTHESIS AND TECHNOLOGY</subject></subj-group></article-categories><title-group><article-title>Синтез и свойства сополимеров на основе полиэфирэфиркетона с регулируемой степенью кристалличности</article-title><trans-title-group xml:lang="en"><trans-title>Synthesis and properties of polyetheretherketone-based copolymers with controlled degree of crystallinity</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>Жанситов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhansitov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нальчик</p></bio><bio xml:lang="en"><p>Nalchik </p></bio><email xlink:type="simple">azamat-z@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шахмурзова</surname><given-names>К. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Shakhmurzova</surname><given-names>K. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нальчик</p></bio><bio xml:lang="en"><p>Nalchik </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Курданова</surname><given-names>Ж. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurdanova</surname><given-names>Zh. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нальчик</p></bio><bio xml:lang="en"><p>Nalchik </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шокумова</surname><given-names>М. У.</given-names></name><name name-style="western" xml:lang="en"><surname>Shokumova</surname><given-names>M. U.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нальчик</p></bio><bio xml:lang="en"><p>Nalchik </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Оразаев</surname><given-names>А. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Orazaev</surname><given-names>A. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нальчик</p></bio><bio xml:lang="en"><p>Nalchik </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Симонов-Емельянов</surname><given-names>И. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Simonov-Yemelyanov</surname><given-names>I. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хаширова</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Khashirova</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нальчик</p></bio><bio xml:lang="en"><p>Nalchik </p></bio><xref ref-type="aff" rid="aff-1"/></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 named аfter Н.М. Berbekov</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>«МИРЭА – Российский технологический университет» (Институт тонких химических технологий имени М.В. Ломоносова)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>“MIREA – Russian Technological University” (M.V. Lomonosov Institute of Fine Chemical Technologies)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>15</day><month>05</month><year>2026</year></pub-date><volume>1</volume><issue>2</issue><fpage>13</fpage><lpage>16</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Жанситов А.А., Шахмурзова К.Т., Курданова Ж.И., Шокумова М.У., Оразаев А.Х., Симонов-Емельянов И.Д., Хаширова С.Ю., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Жанситов А.А., Шахмурзова К.Т., Курданова Ж.И., Шокумова М.У., Оразаев А.Х., Симонов-Емельянов И.Д., Хаширова С.Ю.</copyright-holder><copyright-holder xml:lang="en">Zhansitov A.A., Shakhmurzova K.T., Kurdanova Z.I., Shokumova M.U., Orazaev A.K., Simonov-Yemelyanov I.D., Khashirova S.Y.</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.plastics-news.ru/jour/article/view/1231">https://www.plastics-news.ru/jour/article/view/1231</self-uri><abstract><p>Методом нуклеофильной поликонденсации синтезированы сополимеры на основе полиэфирэфиркетона (ПЭЭК) с введением 4,4'-дихлордифенилсульфона (ДХДФС) в качестве сомономера в количестве 5, 10 и 15 мол.%. Исследовано влияние концентрации карбоната калия и температуры синтеза на кинетику поликонденсации сополимеров. Методом ИКспектроскопии подтверждена структура полученных сополимеров. Методами дифференциально-сканирующей калориметрии изучено влияние количества ДХДФС и молекулярной массы на такие характеристики сополимеров, как степень кристалличности, температуры стеклования, плавления и кристаллизации. Показано, что варьирование содержания ДХДФС позволяет контролируемо изменять степень кристалличности сополимеров, что открывает возможности для целенаправленного регулирования технологических и эксплуатационных свойств.</p></abstract><trans-abstract xml:lang="en"><p>Copolymers based on polyetheretherketone (PEEK) were synthesized by nucleophilic polycondensation with the introduction of 4,4'-dichlorodiphenylsulfone (DCDPS) as a comonomer in amounts of 5, 10, and 15 mol%. The effect of potassium carbonate concentration and synthesis temperature on the polycondensation kinetics of copolymers was investigated. The structure of the obtained copolymers has been confirmed by IR spectroscopy. The effect of the amount of DCDPS and the molecular weight on such characteristics of copolymers as the degree of crystallinity, glass transition, melting, and crystallization temperatures has been studied using differential scanning calorimetry. It has been shown that varying the content of DCDPS allows for a controlled change in the degree of crystallinity of the copolymers, which opens up opportunities for targeted regulation of their technological and operational properties.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полиэфирэфиркетон</kwd><kwd>сополимеры</kwd><kwd>4</kwd><kwd>4'-дихлордифенилсульфон</kwd><kwd>степень кристалличности</kwd><kwd>показатель текучести расплава</kwd><kwd>поликонденсация</kwd><kwd>3D-печать</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polyetheretherketone</kwd><kwd>copolymers</kwd><kwd>4</kwd><kwd>4'-dichlorodiphenylsulfone</kwd><kwd>degree of crystallinity</kwd><kwd>melt flow index</kwd><kwd>polycondensation</kwd><kwd>3D printing</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 25-23-20234, https://rscf.ru/project/25-23-20234/.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Drozdov A.D., deClaville Christiansen J. 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