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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">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8331-2020-56-4-473-481</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-619</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>ХИМИЯ ВЫСОКОМОЛЕКУЛЯРНЫХ СОЕДИНЕНИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POLYMER CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Термические свойства композиционных волокон состава целлюлоза-хитозан</article-title><trans-title-group xml:lang="en"><trans-title>Thermal properties of cellulose-chitosan composite fibers</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>Савицкая</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Savitskaya</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Савицкая Татьяна Александровна - кандидат химических наук, доцент, профессор.</p><p>Ул. Ленинградская, 14, 220006, Минск</p></bio><bio xml:lang="en"><p>Tatsiana A. Savitskaya - Ph. D. (Chemistry), Associate Professor.</p><p>14, Leningradskaya Str., 220006, Minsk</p></bio><email xlink:type="simple">savitskayaTA@bsu.by</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>Цыганкова</surname><given-names>Н. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsygankova</surname><given-names>N. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Цыганкова Надежда Георгиевна - кандидат химических наук, вед. научный сотрудник.</p></bio><bio xml:lang="en"><p>Nadzeia G. Tsyhankova - Ph. D. (Chemistry), Leading Researcher.</p><p>14, Leningradskaya Str., 220006, Minsk</p></bio><email xlink:type="simple">ng-tsyg@mail.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>Макаревич</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Makarevich</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Макаревич Светлана Евгеньевна - старший  научный сотрудник.</p><p>Ул. Ленинградская, 14, 220006, Минск</p></bio><bio xml:lang="en"><p>Svetlana E. Makarevich - Senior Researcher.</p><p>14, Leningradskaya Str., 220006, Minsk</p></bio><email xlink:type="simple">grinshpan@bsu.by</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>Гриншпан</surname><given-names>Д. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Grinshpan</surname><given-names>D. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гриншпан Дмитрий Давидович - доктор химических наук, профессор, зав. Лабораторией.</p><p>Ул. Ленинградская, 14, 220006, Минск</p></bio><bio xml:lang="en"><p>Dzmitry D. Hrynshpan - D. Sc. (Chemistry), Professor, Head of the Laboratory.</p><p>14, Len-ingradskaya Str., 220006, Minsk</p></bio><email xlink:type="simple">grinshpan@bsu.by</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>Ивашкевич</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivashkevich</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ивашкевич Олег Анатольевич - академик, доктор химических наук, гл. научный сотрудник.</p><p>Ул. Ленинградская, 14, 220006, Минск</p></bio><bio xml:lang="en"><p>Oleg A. Ivashkevich - Academician, D. Sc. (Chemistry), Chief Researcher.</p></bio><email xlink:type="simple">ivashkev-ichO@bsu.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution></aff><aff xml:lang="en"><institution>Belarusian State University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт физико-химических проблем, БГУ</institution></aff><aff xml:lang="en"><institution>Research Institute for Physical Chemical Problems</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>05</day><month>12</month><year>2020</year></pub-date><volume>56</volume><issue>4</issue><fpage>473</fpage><lpage>481</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савицкая Т.А., Цыганкова Н.Г., Макаревич С.Е., Гриншпан Д.Д., Ивашкевич О.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Савицкая Т.А., Цыганкова Н.Г., Макаревич С.Е., Гриншпан Д.Д., Ивашкевич О.А.</copyright-holder><copyright-holder xml:lang="en">Savitskaya T.A., Tsygankova N.G., Makarevich S.E., Grinshpan D.D., Ivashkevich O.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://vestichem.belnauka.by/jour/article/view/619">https://vestichem.belnauka.by/jour/article/view/619</self-uri><abstract><p>Получены композиционные волокна состава целлюлоза-хитозан по способу мокрого формования из совместных растворов в ортофосфорной кислоте. Методами термогравиметрии (ТГ), дифференциальной термогравиметрии (ДТГ) и дифференциальной сканирующей калориметрии (ДСК) проведена оценка их термических свойств в интервале 20-600 оС в атмосфере воздуха. Установлено, что температура максимальной скорости разложения композиционных волокон лежит между температурами, характерными для индивидуальных компонентов. Показано, что добавление к целлюлозе хитозана приводит к росту массы карбонизованного остатка и придает целлюлозным волокнам свойство самозатухаемости. Дано объяснение наблюдаемому эффекту, обусловленному достижением равномерного распределения друг в друге макромолекул целлюлозы и хитозана и их агрегатов, разделенных межфазными слоями, в которых реализована сетка зацеплений взаимопроникающих сегментов макромолекул обоих полимеров, что обеспечивает появление у композиционных волокон негорючести при содержании хитозана более 20 % и сохранение целостности волокон после их обработки растворителем хитозана - уксусной кислотой.</p></abstract><trans-abstract xml:lang="en"><p>Cellulose-chitosan composite fibers were obtained by the method of wet spinning from joint solutions in phosphoric acid. Thermogravimetry (TG), differential thermogravimetry (DTG) and differential scanning calorimetry (DSC) methods have been used to evaluate their thermal properties in the range of 20-600 °C in air atmosphere. It was found that the temperature of the maximum decomposition rate of composite fibers lies between the temperatures characteristic of individual components. It is shown that the addition of chitosan to cellulose leads to an increase in the mass of the carbon residue and gives the cellulosic fibers a self-extinguishing property. The observed effect is explained by the uniform distribution of cellulose and chitosan macromolecules and their aggregates separated by interphase layers in each other, in which a net of interpenetrating segments of both polymer macromolecules is represented. This provides the incombustibility for composite fibers with a chitosan content of more than 20 % and maintaining the integrity of the fibers after processing them with a solvent of chitosan-acetic acid.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>целлюлоза</kwd><kwd>хитозан</kwd><kwd>ортофосфорная кислота</kwd><kwd>композиционные волокна</kwd><kwd>термостабильность</kwd><kwd>способность к самозатуханию</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cellulose</kwd><kwd>chitosan</kwd><kwd>phosphoric acid</kwd><kwd>composite fibers</kwd><kwd>thermal stability</kwd><kwd>self-extinguishing ability</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Белорусского республиканского фонда фундаментальных исследований (грант № Х20КИ-010)</funding-statement><funding-statement xml:lang="en">This work has been done with the financial support of Belarusian Republican Foundation for Fundamental Research (grant No. Х20КИ-010)</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">Large-scale additive manufacturing with bioinspired cellulosic materials / N. 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