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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 custom-type="elpub" pub-id-type="custom">vestich-249</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>ФИЗИЧЕСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICAL CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>КАРБОКСИЛЬНЫЙ ИОНИТ НА ОСНОВЕ ПОЛИАКРИЛОНИТРИЛЬНОГО ВОЛОКНА КАК ПОТЕНЦИАЛЬНЫЙ КОМПОНЕНТ ПИТАТЕЛЬНЫХ СУБСТРАТОВ ДЛЯ РАСТЕНИЙ</article-title><trans-title-group xml:lang="en"><trans-title>A CARBOXYLATE ION EXCHANGER BASED ON POLYACRYLONITRILE FIBER AS A POTENTIAL COMPONENT OF NUTRIENT SUBSTRATES FOR PLANTS</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>Шахно</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shakhno</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотрудник</p></bio><bio xml:lang="en"><p>Junior Researcher</p></bio><email xlink:type="simple">shakhnodv@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>Солдатов</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Soldatov</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик, д-р хим. наук, профессор, зав. лаб.</p></bio><bio xml:lang="en"><p>Academician, D. Sc. (Chemistry), Professor, Head of the Laboratory</p><p> </p><p> </p></bio><email xlink:type="simple">soldatov@ifoch.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физико-органической химии НАН Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Physical Organic Chemistry of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>07</day><month>08</month><year>2017</year></pub-date><volume>0</volume><issue>2</issue><fpage>7</fpage><lpage>14</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шахно Д.В., Солдатов В.С., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Шахно Д.В., Солдатов В.С.</copyright-holder><copyright-holder xml:lang="en">Shakhno D.V., Soldatov V.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://vestichem.belnauka.by/jour/article/view/249">https://vestichem.belnauka.by/jour/article/view/249</self-uri><abstract><p>Определены параметры кислотности и тип функциональных групп аминокарбоксильного полиамфолита с преимущественным содержанием карбоксильных групп, полученного на основе промышленного полиакрилонитрильного волокна (Панион-110). Предложен алгоритм определения типа функциональных групп из кривых титрования при разных концентрациях фонового электролита. На основании теоретической модели рассчитаны кривые титрования при концентрациях фонового электролита, соответствующих почвенным и питательным растворам для растений. Сделан вывод о пригодности данного ионита в качестве компонента волокнистого ионообменного субстрата для растений – носителя иона калия. </p></abstract><trans-abstract xml:lang="en"><p>The acidity parameters and type of functional groups of the aminocarboxylate polyampholyte with prevailing carboxylate groups prepared from an industrial polyacrylonitrile fiber (Panion-110), have been determined. An algorithm for determining the type of functional groups based on the potentiometric titration data at different concentrations of the background electrolyte, has been proposed. Titration curves were calculated for the background electrolyte concentrations corresponding to soil and nutrient solutions for plants. It has been concluded that the ion exchanger is suitable as a component of the ion exchanging fibrous substrate for plants, carrying potassium ions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ионный обмен</kwd><kwd>волокнистый ионит</kwd><kwd>потенциометрическое титрование</kwd><kwd>моделирование ионного обмена</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ion exchange</kwd><kwd>fibrous ion exchanger</kwd><kwd>potentiometric titration</kwd><kwd>ion exchange simulation</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">Soldatov, V. S. Ion exchangers for air puriﬁcation / V. S. Soldatov, E. G. Kosandrovich // Ion exchange and solvent extraction. – 2011. – Vol. 20. – P. 45–117.</mixed-citation><mixed-citation xml:lang="en">Soldatov V. 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