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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of General Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of General Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал общей химии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0044-460X</issn><issn publication-format="electronic">3034-5596</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">679803</article-id><article-id pub-id-type="doi">10.31857/S0044460X25010068</article-id><article-id pub-id-type="edn">AHKKUL</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Effect of the Counterion of Styrenesulfonic and Maleic Acid Copolymer on the Properties of Its Complexes with Polyvinyl Alcohol</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние противоиона сополимера стиролсульфоновой и малеиновой кислот на свойства его комплексов с поливиниловым спиртом</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ochenkov</surname><given-names>D. E.</given-names></name><name xml:lang="ru"><surname>Оченков</surname><given-names>Д. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>pyshkina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pantsernaya</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Панцерная</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>pyshkina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Neudakhina</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Неудахина</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>pyshkina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Grossman</surname><given-names>R. V.</given-names></name><name xml:lang="ru"><surname>Гроссман</surname><given-names>Р. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>pyshkina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pyshkina</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Пышкина</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>pyshkina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sergeyev</surname><given-names>V. G.</given-names></name><name xml:lang="ru"><surname>Сергеев</surname><given-names>В. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>pyshkina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Litmanovich</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Литманович</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>pyshkina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">M. V. Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет имени М. В. Ломоносова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-02-15" publication-format="electronic"><day>15</day><month>02</month><year>2025</year></pub-date><volume>95</volume><issue>1-2</issue><issue-title xml:lang="ru"/><fpage>52</fpage><lpage>64</lpage><history><date date-type="received" iso-8601-date="2025-05-17"><day>17</day><month>05</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://genescells.com/0044-460X/article/view/679803">https://genescells.com/0044-460X/article/view/679803</self-uri><abstract xml:lang="en"><p>In this work, the interaction of a copolymer of styrene sulfonic and maleic acids in acidic and salt forms with polyvinyl alcohol in a wide concentration range was studied using light scattering and viscometry methods, and it was shown that the nature of the copolymer counterion has a significant effect on the properties of the resulting interpolymer complexes. In dilute solutions, polyvinyl alcohol interacts only with the salt form of the copolymer. In semi-dilute solutions, both forms of the copolymer interact with polyvinyl alcohol, but water-soluble complexes for all ratios of the copolymer and polyvinyl alcohol are formed only with the participation of the acid form of the copolymer.</p></abstract><trans-abstract xml:lang="ru"><p>В работе методами светорассеяния и вискозиметрии исследовано взаимодействие сополимера стиролсульфоновой и малеиновой кислот в кислой и солевой формах с поливиниловым спиртом в широком концентрационном интервале. Показано, что природа противоиона сополимера оказывает значительное влияние на свойства образующихся интерполимерных комплексов. В разбавленных растворах поливиниловый спирт взаимодействует только с солевой формой сополимера. В полуразбавленных растворах с поливиниловым спиртом взаимодействуют обе формы сополимера, однако водорастворимые комплексы для всех соотношений сополимера и поливинилового спирта образуются только с участием кислой формы сополимера.</p></trans-abstract><kwd-group xml:lang="en"><kwd>interpolymer complexes</kwd><kwd>hydrogen bond</kwd><kwd>ion-dipole bond</kwd><kwd>semi-dilute polymer solutions</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>интерполимерные комплексы</kwd><kwd>водородная связь</kwd><kwd>ион-дипольная связь</kwd><kwd>полуразбавленные растворы полимеров</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство РФ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source><award-id>АААА-А21-121011990022-4</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Teodorescu M., Bercea M., Morariu S. // Colloids Surf. 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