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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-1406</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>СПЕКТРОСКОПИЯ В БИОЛОГИИ И МЕДИЦИНЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SPECTROSCOPY IN BIOLOGY AND MEDICINE</subject></subj-group></article-categories><title-group><article-title>Температурно-частотные зависимости электрофизических характеристик полифункциональных соединений на примере гваякола</article-title><trans-title-group xml:lang="en"><trans-title>Temperature-Frequency Dependences of Electrophysical Characteristics of Polyfunctional Compounds Using the Example of Guiacole</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>Волков</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Архангельск</p></bio><bio xml:lang="en"><p>Arkhangelsk</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>Хвиюзов</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Khviyuzov</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Архангельск</p></bio><bio xml:lang="en"><p>Arkhangelsk</p></bio><email xlink:type="simple">khviyuzov.s@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Северный (Арктический) федеральный университет имени М. В. Ломоносова</institution></aff><aff xml:lang="en"><institution>M. V. Lomonosov Northern (Arctic) Federal University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральный исследовательский центр комплексного изучения Арктики имени академика Н. П. Лаверова УрО РАН</institution></aff><aff xml:lang="en"><institution>N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>24</day><month>11</month><year>2023</year></pub-date><volume>90</volume><issue>6</issue><fpage>902</fpage><lpage>909</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Волков А.С., Хвиюзов С.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Волков А.С., Хвиюзов С.С.</copyright-holder><copyright-holder xml:lang="en">Volkov A.S., Khviyuzov S.S.</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/1406">https://zhps.ejournal.by/jour/article/view/1406</self-uri><abstract><p>Проанализированы зависимости   компонент   комплексной   диэлектрической   проницаемости и удельной электрической проводимости в диапазонах частот 10–2—107 Гц и температур 213—433 К гваякола как модельного соединения лигнина — одного из наиболее распространенных биополимеров. Установлено наличие трех групп релаксаторов и определены их характеристики (время релаксации, энергия активации), показано изменение энергии активации в зависимости от агрегатного состояния. Полученные данные свидетельствуют о схожести процессов диэлектрической релаксации и проводимости лигнинного полимера и его модельных соединений в переменном электрическом поле.</p></abstract><trans-abstract xml:lang="en"><p>Guaiacol is a model compound of one of the most common lignin biopolymers. The results of the analysis of the dependences of the components of the complex dielectric permittivity and specific electrical conductivity in the frequency ranges of 10–2–107 Hz and temperatures of 213–433 K of guaiacol are presented. Three groups of relaxators are identified. Their characteristics (relaxation time, activation energy) are defined. The change in the activation energy depending on the aggregate state is shown. The similarity of the processes of dielectric relaxation and conductivity of lignin and its model compounds in an alternating electric field are established.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гваякол</kwd><kwd>диэлектрическая спектроскопия</kwd><kwd>релаксаторы</kwd><kwd>энергия активации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>guaiacol</kwd><kwd>dielectric spectroscopy</kwd><kwd>relaxators</kwd><kwd>activation energy</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФГБУН ФИЦКИА УрО РАН 2022—2024 гг. № 122011700252-1</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">S. Sethupathy, G. M. Morales, L. Gao, H. Wang, B. Yang, J. Jiang, J. Sun, D. Zhu. Bioresource Technology, 347 (2022) 126696</mixed-citation><mixed-citation xml:lang="en">S. Sethupathy, G. M. Morales, L. 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