<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">phmath</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Государственного университета просвещения. Серия: Физика-Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Federal State University of Education. Series: Physics and Mathematics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2949-5083</issn><issn pub-type="epub">2949-5067</issn><publisher><publisher-name>Federal State University of Education</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18384/2310-7251-2021-4-22-31</article-id><article-id custom-type="elpub" pub-id-type="custom">phmath-92</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>НЕНЬЮТОНОВСКОЕ ТЕЧЕНИЕ ЛИОТРОПНОГО ЖИДКОКРИСТАЛЛИЧЕСКОГО ПОЛИМЕРА</article-title><trans-title-group xml:lang="en"><trans-title>NON-NEWTONIAN FLOW OF A LYOTROPIC LIQUID CRYSTAL POLYMER</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>Вековищев</surname><given-names>М. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Vekovishchev</surname><given-names>M. P.</given-names></name></name-alternatives><email xlink:type="simple">mpv.71@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>Кирсанов</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirsanov</surname><given-names>E. A.</given-names></name></name-alternatives><email xlink:type="simple">kirsanov47@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Государственный социально-гуманитарный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State University of Humanities and Social Studies</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>15</day><month>02</month><year>2022</year></pub-date><volume>0</volume><issue>4</issue><fpage>22</fpage><lpage>31</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вековищев М.П., Кирсанов Е.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Вековищев М.П., Кирсанов Е.А.</copyright-holder><copyright-holder xml:lang="en">Vekovishchev M.P., Kirsanov E.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.physmathmgou.ru/jour/article/view/92">https://www.physmathmgou.ru/jour/article/view/92</self-uri><abstract><p>Цель: рассмотреть реологическое поведение раствора жесткоцепного полимера, который образует при высоких концентрациях лиотропный нематический кристалл. Процедура и методы. Проведена аппроксимация экспериментальных данных неньютоновского течения на отдельных интервалах скорости сдвига. Результаты. Представлены уравнения структурной реологической модели, которые связывают реологические свойства со структурой полимерного раствора. Теоретическая и/или практическая значимость. Предложены уравнения, которые способны аппроксимировать экспериментальные данные на отдельных интервалах скорости сдвига, соответствующих определённому структурному состоянию полимерного раствора.</p></abstract><trans-abstract xml:lang="en"><p>Aim. We consider the rheological behavior of a rigid-chain polymer solution, which forms a lyotropic nematic crystal at high concentrations. Methodology. An approximation of the experimental data of the non-Newtonian flow is carried out on separate intervals of the shear rate. Results. We present the equations of the structural rheological model that relate rheological properties to the structure of the polymer solution. Research implications. Equations are proposed that can approximate the experimental data on separate intervals of the shear rate corresponding to a certain structural state of the polymer solution.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>раствор жесткоцепного полимера</kwd><kwd>структурная реологическая модель</kwd><kwd>коэффициенты сдвиговой вязкости</kwd><kwd>обобщённое уравнение течения</kwd><kwd>реологические кривые</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rigid-chain polymer solution</kwd><kwd>structural rheological model</kwd><kwd>shear viscosity coefficients</kwd><kwd>generalized flow equation</kwd><kwd>rheological curves</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">Папков С. П., Куличихин В. Г. Жидкокристаллическое состояние полимеров. М.: Химия, 1977. 240 с.</mixed-citation><mixed-citation xml:lang="en">Папков С. П., Куличихин В. Г. Жидкокристаллическое состояние полимеров. М.: Химия, 1977. 240 с.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Wissbrun K. F. Rheology of Rod-Like Polymers in the Liquid Crystalline State // Journal of Rheology. 1981. Vol. 25. Iss. 6. P. 619-662. DOI: 10.1122/1.549634.</mixed-citation><mixed-citation xml:lang="en">Wissbrun K. F. Rheology of Rod-Like Polymers in the Liquid Crystalline State // Journal of Rheology. 1981. Vol. 25. Iss. 6. P. 619-662. DOI: 10.1122/1.549634.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Rheological studies in p-n-Alkoxy Benzoic Acid Liquid Crystals / Sreehari Sastry S., Bindu Madhavi A., Vishwam T., Ha Sie Tiong // International Journal of Engineering Research &amp; Technology (IJERT). 2017. Vol. 6. Iss. 2. P. 563-568. DOI: 10.17577/IJERTV6IS020390.</mixed-citation><mixed-citation xml:lang="en">Rheological studies in p-n-Alkoxy Benzoic Acid Liquid Crystals / Sreehari Sastry S., Bindu Madhavi A., Vishwam T., Ha Sie Tiong // International Journal of Engineering Research &amp; Technology (IJERT). 2017. Vol. 6. Iss. 2. P. 563-568. DOI: 10.17577/IJERTV6IS020390.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Shear-Thinning Characteristics of Nematic Liquid Crystals Doped with Nanoparticles / Munehiro Kimura, Zur Ain Binti Hanafi, Tatsuya Takagi, Ryosuke Sawara, Shuji Fujii // Crystals. 2016. Vol. 6. Iss. 11. P. 145-154. DOI: 10.3390/cryst6110145.</mixed-citation><mixed-citation xml:lang="en">Shear-Thinning Characteristics of Nematic Liquid Crystals Doped with Nanoparticles / Munehiro Kimura, Zur Ain Binti Hanafi, Tatsuya Takagi, Ryosuke Sawara, Shuji Fujii // Crystals. 2016. Vol. 6. Iss. 11. P. 145-154. DOI: 10.3390/cryst6110145.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Кирсанов Е. А. Течение дисперсных и жидкокристаллических систем. Иваново: Ивановский государственный университет, 2006. 232 с.</mixed-citation><mixed-citation xml:lang="en">Кирсанов Е. А. Течение дисперсных и жидкокристаллических систем. Иваново: Ивановский государственный университет, 2006. 232 с.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Кирсанов Е. А., Матвеенко В. Н. Неньютоновское течение дисперсных, полимерных и жидкокристаллических систем. Структурный подход: монография М.: Техносфера, 2016. 384 с.</mixed-citation><mixed-citation xml:lang="en">Кирсанов Е. А., Матвеенко В. Н. Неньютоновское течение дисперсных, полимерных и жидкокристаллических систем. Структурный подход: монография М.: Техносфера, 2016. 384 с.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Larson R. G. The Structure and Rheology of Complex Fluids. New York, Oxford: Oxford University Press, 1999. 668 p.</mixed-citation><mixed-citation xml:lang="en">Larson R. G. The Structure and Rheology of Complex Fluids. New York, Oxford: Oxford University Press, 1999. 668 p.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
