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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">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-244</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>Статьи</subject></subj-group></article-categories><title-group><article-title>ОПТИЧЕСКИЕ СВОЙСТВА АМОРФНЫХ ПЕРФТОРИРОВАННЫХ ПОЛИМЕРОВ В ТЕРАГЕРЦОВОМ ДИАПАЗОНЕ ЧАСТОТ</article-title><trans-title-group xml:lang="en"><trans-title>OPTICAL PROPERTIES OF АMORPHOUS PERFLUORINATED POLYMERS AT THE TERAHERTZ RANGE</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>Китай</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kitai</surname><given-names>M. S.</given-names></name></name-alternatives><email xlink:type="simple">mkitai@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>Волков</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkov</surname><given-names>W. W.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Жаров</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zharov</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Зубавичус</surname><given-names>Я. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zubavichus</surname><given-names>Ya. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Конарев</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Konarev</surname><given-names>P. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Назаров</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Nazarov</surname><given-names>M. M.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полунин</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Polunin</surname><given-names>E. W.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Погодина</surname><given-names>Ю. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Pogodina</surname><given-names>Yu. E.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Соколов</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolov</surname><given-names>V. I.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФНИЦ “Кристаллография и фотоника” Российской АН</institution></aff><aff xml:lang="en"><institution>Federal Research Center “Crystallography and Photonics”, Russian Academy of Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт органической химии им. Н. Д. Зелинского Российской АН</institution></aff><aff xml:lang="en"><institution>Institute of Organic Chemistry, Russian Academy of Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>НИЦ “Курчатовский институт”</institution></aff><aff xml:lang="en"><institution>Research Center “Kurchatov’s Institute”</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ФНИЦ “Кристаллография и фотоника” Российской АН; НИЦ “Курчатовский институт”</institution></aff><aff xml:lang="en"><institution>Federal Research Center “Crystallography and Photonics”, Russian Academy of Sciences; Research Center “Kurchatov’s Institute”</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2020</year></pub-date><volume>85</volume><issue>3</issue><fpage>364</fpage><lpage>371</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Китай М.С., Волков В.В., Жаров А.А., Зубавичус Я.В., Конарев П.В., Назаров М.М., Полунин Е.В., Погодина Ю.Е., Соколов В.И., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Китай М.С., Волков В.В., Жаров А.А., Зубавичус Я.В., Конарев П.В., Назаров М.М., Полунин Е.В., Погодина Ю.Е., Соколов В.И.</copyright-holder><copyright-holder xml:lang="en">Kitai M.S., Volkov W.W., Zharov A.A., Zubavichus Y.V., Konarev P.V., Nazarov M.M., Polunin E.W., Pogodina Y.E., Sokolov V.I.</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://zhps.ejournal.by/jour/article/view/244">https://zhps.ejournal.by/jour/article/view/244</self-uri><abstract><p>Синтезированы оригинальные аморфные перфторированные полимеры и исследованы их свойства в терагерцовом (ТГц) и рентгеновском диапазонах частот. Рассмотрены особенности процесса полимеризации таких мономеров, в которых все атомы водорода заменены на фтор. Измерение их оптических свойств в ТГц диапазоне частот показало рекордно низкое значение показателя преломления для твердых тел в этом диапазоне. Дана оценка минимально возможного коэффициента рефракции для таких полимеров. Продемонстрирована высокая прозрачность этих материалов. Положение слабого максимума поглощения в области 1-2 ТГц сопоставлено с характерным расстоянием между элементами структуры в полимере, которые получены из данных рентгеноструктурного анализа этих материалов.</p></abstract><trans-abstract xml:lang="en"><p>Novel amorphous perfluorinated polymers are synthesized and their features are investigated in terahertz and X-ray spectral ranges. We consider the features of the polymerization process for such monomers in which all hydrogen H atoms are replaced by fluorine F atoms. The measurements of their optical features in the THz range show a record low value of the refraction index in comparison with any solid. The possible minimum of the refraction indices for such polymers is estimated. Also the high transparency of these polymers is shown. The X-ray spectra for some of such polymers are measured. The data obtained by X-ray diffraction analysis are compared with the peaks of the terahertz absorption spectrum.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>аморфные перфторированные полимеры</kwd><kwd>терагерцовый диапазон частот</kwd><kwd>спектры поглощения и рефракции</kwd><kwd>рентгеноструктурный анализ</kwd><kwd>amorphous perfluorinated polymers</kwd><kwd>terahertz range</kwd><kwd>absorption and refraction spectra</kwd><kwd>X-ray diffraction analysis</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">B. Ung, M. Scorobogatiy. 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