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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</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">10.29235/1561-8323-2019-63-2-169-174</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-599</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</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Фотоизомеризация и фотоориентация бриллиантового желтого в тонкопленочном состоянии</article-title><trans-title-group xml:lang="en"><trans-title>Photoisomerization and photoorientation of brilliant yellow in the thin film state</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>Лемешонок</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lemiashonak</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лемешонок Светлана Николаевна – мл. науч. со трудник. </p><p>ул. Ф. Скорины, 36, 220141, Минск.</p></bio><bio xml:lang="en"><p>Lemiashonak Sviatlana Nikolaevna – Junior researcher. </p><p>36, F. Skoryna Str., 220141, Minsk.</p></bio><email xlink:type="simple">larikova.svetlana@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>Чапланова</surname><given-names>Ж. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Chaplanova</surname><given-names>Zh. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чапланова Жанна Давидовна – канд. хим. наук, вед. науч. сотрудник. </p><p>ул. Ф. Скорины, 36, 220141, Минск.</p></bio><bio xml:lang="en"><p>Chaplanova Zhanna Davidovna – Ph. D. (Chemistry), Leading researcher. </p><p>36, F. Skoryna Str., 220141, Minsk.</p></bio><email xlink:type="simple">chaplanova_zhanna@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>Агабеков</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Agabekov</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Агабеков Владимир Енокович – академик, д-р хим. наук, профессор, директор. </p><p>ул. Ф. Скорины, 36, 220141, Минск.</p></bio><bio xml:lang="en"><p>Agabekov Vladimir Enokovich – Academician, D. Sc. (Chemistry), Professor, Director. </p><p>36, F. Skoryna Str., 220141, Minsk.</p></bio><email xlink:type="simple">mixa@ichnm.basnet.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>Иванова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванова Надежда Аркадьевна – канд. хим. наук, заве дующая лабораторией. </p><p>ул. Ф. Скорины, 36, 220141, Минск.</p></bio><bio xml:lang="en"><p>Ivanova Nadezhda Arkadievna – Ph. D. (Chemistry), Head of the Laboratory. </p><p>36, F. Skoryna Str., 220141, Minsk.</p></bio><email xlink:type="simple">nadezh_iva@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>Кухто</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kukhta</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кухто Ирина Николаевна – науч. сотрудник. </p><p>ул. Ф. Скорины, 36, 220141, Минск.</p></bio><bio xml:lang="en"><p>Kukhta Iryna Nikolaevna – Researcher.</p><p>36, F. Skoryna Str., 220141, Minsk.</p></bio><email xlink:type="simple">iryna.kukhta@tut.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт химии новых материалов Национальной академии наук Беларуси.</institution></aff><aff xml:lang="en"><institution>Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus.</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>15</day><month>05</month><year>2019</year></pub-date><volume>63</volume><issue>2</issue><fpage>169</fpage><lpage>174</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лемешонок С.Н., Чапланова Ж.Д., Агабеков В.Е., Иванова Н.А., Кухто И.Н., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Лемешонок С.Н., Чапланова Ж.Д., Агабеков В.Е., Иванова Н.А., Кухто И.Н.</copyright-holder><copyright-holder xml:lang="en">Lemiashonak S.N., Chaplanova Z.D., Agabekov V.E., Ivanova N.A., Kukhta I.N.</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://doklady.belnauka.by/jour/article/view/599">https://doklady.belnauka.by/jour/article/view/599</self-uri><abstract><p>Изучены особенности фотоизомеризации и фотоориентации азокрасителя бриллиантовый желтый (БЖ) в тонкопленочном состоянии. Установлено, что при облучении пленок БЖ полным светом лампы сверхвысокого давления ДРТ-1000 (УФ/ВИД-светом) протекает реакция транс-цис-изомеризации молекул красителя, которая описывается уравнением реакции первого порядка. Под действием линейно-поляризованного синего света (λ = 457 нм)  в пленках на основе БЖ возникает оптическая анизотропия. Показано, что оптически анизотропные пленки БЖ с высоким значением дихроичного отношения (&gt;10) формируются при использовании в качестве растворителей N-метилпирролидона и N,N-диметилформамида, а также ацетилцеллюлозы как полимерной матрицы.</p></abstract><trans-abstract xml:lang="en"><p>The features of photoisomerization and photoorientation of azo dye brilliant yellow (BY) in the thin film state are studied. The trans-cis-isomerization of the dye molecules is established to proceed upon irradiation of the films based on BY with a full light of an ultra-high pressure lamp DRT-1000 (UV / VID light), this reaction is described by the first-order reaction equation. Under the action of linearly polarized blue light (λ = 457 nm), an optical anisotropy arises in films of BY. Optically anisotropic films of BY with a high dichroic ratio (&gt;10) are shown to be formed using N-methylpyrrolidone and N, N-dimethylformamide as solvents and cellulose acetate as the polymer matrix.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>транс-цис-изомеризация</kwd><kwd>фотоориентация</kwd><kwd>азокраситель</kwd><kwd>бриллиантовый желтый</kwd><kwd>тонкая пленка</kwd><kwd>фотооблучение</kwd><kwd>дихроизм поглощения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>trans-cis-isomerization</kwd><kwd>photoorientation</kwd><kwd>azo dye</kwd><kwd>brilliant yellow</kwd><kwd>thin film</kwd><kwd>photoirradiation</kwd><kwd>absorption dichroism</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">Seiberle, H. Photo-aligned anisotropic optical thin films / H. Seiberle, C. Benecke, T. 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