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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 pub-id-type="doi">10.29235/1561-8331-2019-55-1-7-17</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-366</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>Получение новых ионитов на основе полиакрилонитрильного волокна Нитрон С</article-title><trans-title-group xml:lang="en"><trans-title>Synthesis of the new ion exchangers based on polyacrylonitrile fiber Nitron C</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>Косандрович</surname><given-names>Е. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kosandrovich</surname><given-names>E. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Косандрович Евгений Генрихович – кандидат химических наук, доцент, заведующий лабораторией.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Evgeni G. Kasandrovich – Ph. D. (Chemistry), Associate Professor, Head of the Laboratory.</p><p>13, Surganov Str., 220072, Minsk.</p></bio><email xlink:type="simple">kosandrovich@ifoch.bas-net.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>Коршунова</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Korshunova</surname><given-names>Т. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коршунова Татьяна Александровна – кандидат химических наук, старший научный сотрудник.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Tatiana A. Korshunova – Ph. D. (Chemistry), Senior Researcher.</p><p>13, Surganov Str., 220072, Minsk.</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>Шаченкова</surname><given-names>Л. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shachenkova</surname><given-names>L. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шаченкова Лариса Николаевна – кандидат химических наук, старший научный cотрудник.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Larisa N. Shachenkova – Ph. D. (Chemistry), Senior Researcher.</p><p>13, Surganov Str., 220072, Minsk.</p></bio><email xlink:type="simple">sln13102005@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>Якубель</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakubel</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Якубель Ольга Николаевна – младший научный сотрудник.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Volga N. Yakubel – Junior Researcher.</p><p>13, Surganov Str., 220072, Minsk.</p></bio><email xlink:type="simple">niolda69@yandex.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>Вонсович</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vansovich</surname><given-names>N. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вонсович Наталия Васильевна – младший научный сотрудник.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Nataliya V. Vansovich – Junior Researcher.</p><p>13, Surganov Str., 220072, Minsk.</p></bio><email xlink:type="simple">natasha_ya_vonsovich@tut.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 Национальной академии наук 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>2019</year></pub-date><pub-date pub-type="epub"><day>12</day><month>03</month><year>2019</year></pub-date><volume>55</volume><issue>1</issue><fpage>7</fpage><lpage>17</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Косандрович Е.Г., Коршунова Т.А., Шаченкова Л.Н., Якубель О.Н., Вонсович Н.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Косандрович Е.Г., Коршунова Т.А., Шаченкова Л.Н., Якубель О.Н., Вонсович Н.В.</copyright-holder><copyright-holder xml:lang="en">Kosandrovich E.G., Korshunova Т.A., Shachenkova L.N., Yakubel O.N., Vansovich N.B.</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/366">https://vestichem.belnauka.by/jour/article/view/366</self-uri><abstract><p>Получены новые волокнистые иониты путем каталитического аминирования нитрильных групп полиакрилонитрильного волокна тетраэтиленпентаамином и пентаэтиленгексаамином. На их основе получены хелатные иониты с аминодиацетатными функциональными группами. Методом потенциометрического титрования определены кислотно-основные параметры функциональных групп ионитов, полученных в оптимальных условиях: исходные полиамфолиты имеют высокую анионообменную емкость (Еb = 4,5–5,5 м-экв/г), распределенную между тремя видами групп с рКа равными 3,3, 6,2 и 9,2, и катионообменную емкость Еа ≈ 1 м-экв/г с рКа ≈ 10,7; хелатные иониты на их основе содержат три вида кислотных групп с рКа ≈ 3,5, 6,0, 10,5 и два типа анионообменных групп с рКа = 2,0 и 6,0. Показана эффективность исходных полиамфолитов при очистке воздуха от примесей кислотной природы (на примере диоксида серы), хелатных ионитов – при очистке воды от ионов тяжелых металлов.</p></abstract><trans-abstract xml:lang="en"><p>New ion exchangers based on polyacrylonitrile fiber were obtained by catalytic amination of nitrile groups with tetraethylenepentaamine and pentaethylenehexaamine. Chelating ion exchangers with aminodiacetic functional groups were obtained on the base of these materials. The acid-base parameters of the functional groups of obtained ion exchangers were determined by potentiometric titration: initial polyampholytes have a high anion exchange capacity (Eb = 4.5–5.5 m-eq/g) distributed between three types of groups with pKa equal to 3.3, 6.2 and 9.2, and a cation exchange capacity with Ea ≈ 1 m-eq/g and pKa ≈ 10.7; chelating ion exchangers on their base contain three types of acid groups with pKa approximately equal to 3.5, 6.0, 10.5 and two types of anion-exchange groups with pKa equal to 2.0 and 6.0. Initial polyampholytes have a high efficiency in the processes of air purification from acidic impurities (experimental data for sulfur dioxide), chelating ion exchangers – in the processes of water purification from heavy metal ions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>волокнистый ионит</kwd><kwd>полиамфолит</kwd><kwd>полиакрилонитрил</kwd><kwd>потенциометрическое титрование</kwd><kwd>сорбция</kwd><kwd>очистка</kwd><kwd>воздух</kwd><kwd>вода</kwd><kwd>диоксид серы</kwd><kwd>тяжелые металлы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fibrous ion exchanger</kwd><kwd>polyampholite</kwd><kwd>polyacrylonitrile</kwd><kwd>potentiometric titration</kwd><kwd>sorption</kwd><kwd>purification</kwd><kwd>air</kwd><kwd>water</kwd><kwd>sulfur dioxide</kwd><kwd>heavy metals</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">Зверев, М. П. Хемосорбционные волокна / М. П. 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