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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">vuzbiochemi</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Прикладная химия и биотехнология</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Universities. Applied Chemistry and Biotechnology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-2925</issn><issn pub-type="epub">2500-1558</issn><publisher><publisher-name>ИРНИТУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">.org/10.21285/2227-2925-2018-8-1-35-41</article-id><article-id custom-type="elpub" pub-id-type="custom">vuzbiochemi-89</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>ХИМИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>ВЛИЯНИЕ ПРИРОДЫ И ПОЛОЖЕНИЯ КАРБОФУНКЦИОНАЛЬНОГО ЗАМЕСТИТЕЛЯ НА СОРБЦИОННУЮ АКТИВНОСТЬ ПОЛИАЛКИЛСИЛСЕСКВИОКСАНОВ</article-title><trans-title-group xml:lang="en"><trans-title>EFFECT OF THE NATURE AND POSITION OF THE CARBOFUNCTIONAL SUBSTITUENT ON THE SORPTION ACTIVITY OF POLYALKYLSILSESQUIOXANES</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>Пожидаев</surname><given-names>Ю. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Pozhidaev</surname><given-names>Yu. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедева</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedeva</surname><given-names>O. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бурмаа</surname><given-names>Г. ..</given-names></name><name name-style="western" xml:lang="en"><surname>Burmaa</surname><given-names>G. ..</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email></contrib></contrib-group><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>23</day><month>09</month><year>2019</year></pub-date><volume>8</volume><issue>1</issue><fpage>35</fpage><lpage>41</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пожидаев Ю.Н., Лебедева О.В., Бурмаа Г..., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Пожидаев Ю.Н., Лебедева О.В., Бурмаа Г...</copyright-holder><copyright-holder xml:lang="en">Pozhidaev Y.N., Lebedeva O.V., Burmaa G...</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://vuzbiochemi.elpub.ru/jour/article/view/89">https://vuzbiochemi.elpub.ru/jour/article/view/89</self-uri><abstract><p>Для извлечения благородных металлов из растворов предложена большая группа органических сорбентов. Особое место в этом ряду занимают кремнийорганические сорбенты. Их сорбционная активность определяется характером функциональной группы и ее положением в полимерной цепи. Рассмотрено влияние природы и положения функционального заместителя на сорбционную активность полиалкилсилсесквиоксанов по отношению к ионам Ag(I) и Au(III) для полимер-гомологов и полимер-аналогов с сульфгидрильными, сульфокислотными, тиоалкиламинными, гуанидиновыми, бигуанидиновыми, малонодиамидными и фталамидными группами. Показано, что при переходе от полиалкилсилсесквиоксанов, содержащих химически активные группы в a-положении, к их полимер-гомологам, содержащим эти же группы b- и g-положении, сорбционная активность повышается. Для комплексообразующих полимеров сорбционная активность определяется устойчивостью образующихся хелатных соединений, числом донорно-активных атомов в составе функциональных групп и их пространственной доступностью для образования комплексов. </p></abstract><trans-abstract xml:lang="en"><p>An extensive number of organic sorbents can be used for extraction of precious metals from solutions, among which organosilicon sorbents deserve a particular attention. The sorption activity of organosilicon sorbents is determined by the nature of the functional group and its position in the polymer chain. In this study, the effect of the nature and position of the functional substituent on the sorption activity of polyalkylsilsesquioxanes with respect to Ag (I) and Au (III) ions is analyzed for polymer homologues and polymer analogs with sulfhydril, sulphonic, thioalkylamine, guanidine, biguanidine, malonodiamide and phthalamide groups. It is shown that the sorption activity of the com-pounds under study increases during a transition from polyalkylsilsesquioxanes, containing chemically active groups in the a-position, to their polymer homologues, containing these groups in the b- и g-position. The sorption activity of complexing polymers is determined by the stability of the chelate compounds formed, the number of donor-active atoms in the functional groups and their spatial position facilitating the formation of complexes. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>ионообменные и комплексообразующие кремнийорганические полимеры</kwd><kwd>сорбционная активность</kwd><kwd>ионы серебра и золота</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ion-exchange and complex-forming organosilicon polymers</kwd><kwd>sorption activity</kwd><kwd>silver and gold ions</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">Zub Yu. L., Parish R. V. Functionalised polysiloxane sorbents: preparation, structure, properties and use // Studies in Surface Science and Catalysis. 1996. V. 99. P. 285-299.</mixed-citation><mixed-citation xml:lang="en">Zub Yu. L., Parish R. V. 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