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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">10.35164/0554-2901-2023-11-12-3-5</article-id><article-id custom-type="elpub" pub-id-type="custom">plasticnews-928</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>XIX Международная научно-практическая конференция «Новые полимерные композиционные материалы. Микитаевские чтения»</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>XIX International Scientific and Practical Conference "New polymer composite materials. Mikitaev readings"</subject></subj-group></article-categories><title-group><article-title>Полимеризация D,L-лактида в присутствии биосовместимого катализатора субсалицилата висмута</article-title><trans-title-group xml:lang="en"><trans-title>Polymerization of D,L-lactide in the presence of biocompatible catalyst bismuth subsalicylate</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>Атаманова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Atamanova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">atamanova1aa@gmail.com</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>Калинин</surname><given-names>К. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalinin</surname><given-names>K. T.</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-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Плахов</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Plakhov</surname><given-names>A. P.</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>Ступников</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Stupnikov</surname><given-names>A. A.</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>Дмитряков</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitryakov</surname><given-names>P. V.</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>Королев</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Korolev</surname><given-names>S. V.</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-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Седуш</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Sedush</surname><given-names>N. G.</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-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт синтетических полимерных материалов им. Н.С. Ениколопова РАН;&#13;
Национальный исследовательский центр «Курчатовский институт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Enikolopov Institute of Synthetic Polymeric Materials RAS;&#13;
National Research Center «Kurchatov Institute»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский центр «Курчатовский институт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Center «Kurchatov Institute»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБНУ «Российский научный центр хирургии им. акад. Б.В. Петровского»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Petrovsky National Research Centre of Surgery</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>11</day><month>01</month><year>2024</year></pub-date><volume>0</volume><issue>11-12</issue><fpage>3</fpage><lpage>5</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Атаманова А.А., Калинин К.Т., Плахов А.П., Ступников А.А., Дмитряков П.В., Королев С.В., Седуш Н.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Атаманова А.А., Калинин К.Т., Плахов А.П., Ступников А.А., Дмитряков П.В., Королев С.В., Седуш Н.Г.</copyright-holder><copyright-holder xml:lang="en">Atamanova A.A., Kalinin K.T., Plakhov A.P., Stupnikov A.A., Dmitryakov P.V., Korolev S.V., Sedush N.G.</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/928">https://www.plastics-news.ru/jour/article/view/928</self-uri><abstract><p>Проведена полимеризация D,L-лактида в массе при 160°С в присутствии субсалицилата висмута (III) в качестве катализатора. Методом дифференциальной сканирующей калориметрии в изотермическом режиме исследована кинетика реакции при 160°С и концентрации катализатора 2500, 5000 и 7500 ppm. Показано, что катализатор обладает высокой активностью: равновесная конверсия при этих условиях достигается за 20–30 мин и составляет 96%, а молекулярная масса полученного поли(D,L-лактида) достигает 118 кДа.</p></abstract><trans-abstract xml:lang="en"><p>Polymerization of D,L-lactide was performed in bulk at 160°C in the presence of bismuth (III) subsalicylate catalyst. Kinetics of the reaction was studied by differential scanning calorimetry in isothermal mode at 160°C and catalyst concentrations of 2500, 5000, and 7500 ppm. It was shown that the catalyst has a high activity: under this conditions an equilibrium conversion of 96% was achieved in 20–30 min, and the molecular weight of the resulting poly(D,L-lactide) reached 118 kDa.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полилактид</kwd><kwd>биоразлагаемые полимеры</kwd><kwd>полимеризация с раскрытием цикла</kwd><kwd>субсалицилат висмута</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polylactide</kwd><kwd>biodegradable polymers</kwd><kwd>ring-opening polymerization</kwd><kwd>bismuth subsalicylate</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Министерства высшего образования и науки РФ (госзадание №FURG-2023-0069)</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">Tyler, B. 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