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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">10.35164/0554-2901-2022-7-8-27-29</article-id><article-id custom-type="elpub" pub-id-type="custom">plasticnews-769</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>СТРУКТУРА И СВОЙСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>STRUCTURE AND PROPERTIES</subject></subj-group></article-categories><title-group><article-title>Фазовая структура и деформационно-прочностные свойства смесей полимолочной кислоты с гибкоцепными полиэфирами</article-title><trans-title-group xml:lang="en"><trans-title>Phase structure and deformation-strength properties of mixtures of polylactic acid with flexible-chain polyesters</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>Масталыгина</surname><given-names>Е. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>MASTALYGINA</surname><given-names>E. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Moscow</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">elena.mastalygina@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>Тюбаева</surname><given-names>П. М.</given-names></name><name name-style="western" xml:lang="en"><surname>TYUBAEVA</surname><given-names>P. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Moscow</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>Киселёв</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>KISELEV</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Moscow</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>Попов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>POPOV</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Moscow</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>Высшая инженерная школа «Новые материалы и технологии», &#13;
ФГБОУ ВО «Российский экономический университет им. Г.В. Плеханова»; ФГБУН «Институт биохимической физики им. Н.М. Эмануэля» РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Higher Engineering School "New Materials and Technologies" , Plekhanov Russian University of Economics; Emanuel Institute of Biochemical Physics of RAS (IBCP RAS)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>26</day><month>10</month><year>2022</year></pub-date><volume>0</volume><issue>7-8</issue><fpage>27</fpage><lpage>29</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Масталыгина Е.Е., Тюбаева П.М., Киселёв Н.В., Попов А.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Масталыгина Е.Е., Тюбаева П.М., Киселёв Н.В., Попов А.А.</copyright-holder><copyright-holder xml:lang="en">MASTALYGINA E.E., TYUBAEVA P.M., KISELEV N.V., POPOV A.A.</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/769">https://www.plastics-news.ru/jour/article/view/769</self-uri><abstract><p>Полимолочная кислота (полилактид) является наиболее широко используемым биоразлагаемым полимером. Для устранения её хрупкости и низкой гибкости применяют различные подходы к пластификации, в частности, используют компаундирование с более гибкими полимерами. В работе изучены возможности пластификации полилактида поликапролактоном и полибутилен адипат/терефталатом при смешении полимеров в растворе с последующим формованием плёнок. Изучены теплофизические и механические характеристики полученных пленочных материалов. Обнаружено влияние добавок пластификаторов на фазовую структуру полилактида с уменьшением его кристалличности и совершенства кристаллитов. Таким образом, наблюдался пластифицирующий эффект с аморфизацией полилактида. При этом возрастала гибкость материалов, о чем говорило увеличение относительного удлинения при растяжении плёнок.</p></abstract><trans-abstract xml:lang="en"><p>Polylactic acid (polylactide) is the most widely used biodegradable polymer. To eliminate its brittleness and low flexibility, various approaches to plasticization are used, in particular, compounding with more flexible polymers. The possibilities of plasticizing polylactide with polycaprolactone and polybutylene adipate/terephthalate by mixing polymers in a solution with subsequent film formation have been studied as well as the thermophysical and mechanical characteristics of the resulting film materials have been studied. The effect of plasticizer additives on the phase structure of polylactide with a decrease in its crystallinity and crystallite perfection was found. Thus, a plasticizing effect with polylactide amorphization was observed. The flexibility of the materials increased, as evidenced by the increase in the relative elongation under tensile strain of the films.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>биоразлагаемый полиэфир</kwd><kwd>полимолочная кислота</kwd><kwd>полилактид</kwd><kwd>пластификация</kwd><kwd>поликапролактон</kwd><kwd>полибутилен адипат/терефталат</kwd></kwd-group><kwd-group xml:lang="en"><kwd>biodegradable polyester</kwd><kwd>polylactic acid</kwd><kwd>polylactide</kwd><kwd>plasticization</kwd><kwd>polycaprolactone</kwd><kwd>polybutylene adipate/terephthalate</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Масталыгина Е.Е. выражает благодарность финансовой поддержке гранта Президента Российской Федерации (МК-3573.2022.1.3, «Создание биоразлагаемых полимерных материалов для медицинских трубок на основе полимолочной кислоты и адипиновых производных»). Исследования выполнены с использованием оборудования Центра коллективного пользования РЭУ им. Г.В. 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