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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">ikbgu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Кабардино-Балкарского государственного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Kabardino-Balkarian State University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2221-7789</issn><publisher><publisher-name>Kabardino-Balkarian State University named after Kh. M. Berbekov</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31143/2221-7789-2026-1-67-72</article-id><article-id custom-type="edn" pub-id-type="custom">PAJOQI</article-id><article-id custom-type="elpub" pub-id-type="custom">ikbgu-252</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>Химия</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Chemistry</subject></subj-group></article-categories><title-group><article-title>Исследование комплесообразующих свойств кватернизированных аммониевых солей</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of the mould-forming properties of quaternized ammonium salts</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>Кокоева</surname><given-names>Анета Ахмедовна</given-names></name><name name-style="western" xml:lang="en"><surname>Kokoeva</surname><given-names>Aneta A.</given-names></name></name-alternatives><email xlink:type="simple">al-aneta@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>Малкандуев</surname><given-names>Юсуф Ахматович</given-names></name><name name-style="western" xml:lang="en"><surname>Malkanduev</surname><given-names>Yusuf A.</given-names></name></name-alternatives><email xlink:type="simple">malkanduev@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>Шокарова</surname><given-names>Марина Мухамедовна</given-names></name><name name-style="western" xml:lang="en"><surname>Shokarova</surname><given-names>Marina M.</given-names></name></name-alternatives><email xlink:type="simple">marinatohtamysheva465@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>Каканаева</surname><given-names>Мариям Хакимовна</given-names></name><name name-style="western" xml:lang="en"><surname>Kakanaeva</surname><given-names>Mariyam Kh.</given-names></name></name-alternatives><email xlink:type="simple">markakanaeva@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Кабардино-Балкарский государственный университет им. Х.М. Бербекова</institution></aff><aff xml:lang="en"><institution>Kabardino-Balkarian State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>21</day><month>04</month><year>2026</year></pub-date><volume>16</volume><issue>1</issue><fpage>67</fpage><lpage>72</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кокоева А.А., Малкандуев Ю.А., Шокарова М.М., Каканаева М.Х., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Кокоева А.А., Малкандуев Ю.А., Шокарова М.М., Каканаева М.Х.</copyright-holder><copyright-holder xml:lang="en">Kokoeva A.A., Malkanduev Y.A., Shokarova M.M., Kakanaeva M.K.</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://www.izvestiakbsu.ru/jour/article/view/252">https://www.izvestiakbsu.ru/jour/article/view/252</self-uri><abstract><p>В статье представлены результаты исследования комплексообразующих свойств катионного полиэлектролита – полидиметилдиаллиламмоний хлорида – по отношению к катионам меди (Cu2+) и кобальта (Co2+) в водных растворах. Определены оптимальные условия комплексообразования: длины волн максимального поглощения для комплексов ПДМДААХ с Cu2+ и Co2+ составили 715 нм и 560 нм соответственно. Установлено, что зависимость оптической плотности от концентрации реагента подчиняется закону Бугера, что свидетельствует о формировании устойчивых комплексов. Рассчитаны молярные коэффициенты поглощения.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of a study of the complexing properties of a cationic polyelectrolyte, polydimethyldiallylammonium chloride, in relation to copper (Cu2+) and cobalt (Co2+) cations in aqueous solutions. Optimal conditions for complexation have been determined: the maximum absorption wavelengths for PDMDAAX complexes with Cu2+ and Co2+ were 715 nm and 560 nm, respectively. It has been established that the dependence of the optical density on the concentration of the reagent obeys Bouguer's law, which indicates the formation of stable complexes. The molar absorption coefficients are calculated.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>четвертичные аммониевые соли</kwd><kwd>полидиметилдиаллиламмоний хлорид (ПДМДААХ)</kwd><kwd>комплексообразование</kwd><kwd>ионы меди</kwd><kwd>ионы кобальта</kwd><kwd>спектрофотометрия</kwd><kwd>катионные полиэлектролиты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>quaternary ammonium salts</kwd><kwd>polydimethyldiallylammonium chloride (PDMDAAC)</kwd><kwd>complexation</kwd><kwd>copper ions</kwd><kwd>cobalt ions</kwd><kwd>spectrophotometry</kwd><kwd>cationic polyelectrolytes</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">Гувер М.Ф. Катионные четвертичные полиэлектролиты // J. Macromol. Sci.-Chem. 1970. Т. 4. № 6.</mixed-citation><mixed-citation xml:lang="en">Hoover M.F. Cationic Quarternery Polyelectrolytes // J. Macromol. Sci.-Chem. 1970. V. 4. 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