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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2025-20-4-310-323</article-id><article-id custom-type="edn" pub-id-type="custom">QWUHUW</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-2275</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="en"><subject>SYNTHESIS AND PROCESSING OF POLYMERS AND POLYMERIC COMPOSITES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СИНТЕЗ И ПЕРЕРАБОТКА ПОЛИМЕРОВ И КОМПОЗИТОВ НА ИХ ОСНОВЕ</subject></subj-group></article-categories><title-group><article-title>Aging effects on polystyrene thin films containing high aromatic moiety compounds under UV irradiation</article-title><trans-title-group xml:lang="ru"><trans-title>Aging effects on polystyrene thin films containing high aromatic moiety compounds under UV irradiation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-9029-535X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Hussain</surname><given-names>Shahad M.</given-names></name><name name-style="western" xml:lang="en"><surname>Hussain</surname><given-names>Shahad M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Shahad M. Hussain, Instructor</p><p>Scopus Author ID 57834372700</p></bio><bio xml:lang="en"><p>Shahad M. Hussain, Instructor, Department of Chemistry</p><p>Baghdad</p><p>Scopus Author ID 57834372700</p><p> </p></bio><email xlink:type="simple">shahad.muhammed@nahrainuniv.edu.iq</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2526-1015</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ahmed</surname><given-names>Ahmed</given-names></name><name name-style="western" xml:lang="en"><surname>Ahmed</surname><given-names>Ahmed</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ahmed Ahmed, Dr. Sci., Professor</p><p>Scopus Author ID 57199491761</p></bio><bio xml:lang="en"><p>Ahmed Ahmed, Dr. Sci., Professor, Department of Chemistry</p><p>Baghdad</p><p>Scopus Author ID 57199491761</p></bio><email xlink:type="simple">ahmed.ahmed@nahrainuniv.edu.iq</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9222-7955</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Kadhom</surname><given-names>Mohammed</given-names></name><name name-style="western" xml:lang="en"><surname>Kadhom</surname><given-names>Mohammed</given-names></name></name-alternatives><bio xml:lang="ru"><p>Mohammed Kadhom, Assistant Professor</p><p>Scopus Author ID 57192541622</p></bio><bio xml:lang="en"><p>Mohammed Kadhom, Assistant Professor, Department of Environment</p><p>Baghdad</p><p>Scopus Author ID 57192541622</p><p> </p></bio><email xlink:type="simple">kadhom@kus.edu.iq</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2205-4061</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ahmed</surname><given-names>Dina S.</given-names></name><name name-style="western" xml:lang="en"><surname>Ahmed</surname><given-names>Dina S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Dina S. Ahmed, PhD Lecturer</p><p>Scopus Author ID 57195275055</p></bio><bio xml:lang="en"><p>Dina S. Ahmed, PhD Lecturer, Department of Chemical Industries</p><p>Baghdad</p></bio><email xlink:type="simple">dina_saadi@mtu.edu.iq</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-2380-3151</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Hameed</surname><given-names>Shams S.</given-names></name><name name-style="western" xml:lang="en"><surname>Hameed</surname><given-names>Shams S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Shams S. Hameed, Instructor</p><p>Scopus Author ID 59541622400</p></bio><bio xml:lang="en"><p>Shams S. Hameed, Instructor</p><p>Baghdad</p><p>Scopus Author ID 59541622400</p></bio><email xlink:type="simple">shamshameed94@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3596-6249</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Mousa</surname><given-names>Omar G.</given-names></name><name name-style="western" xml:lang="en"><surname>Mousa</surname><given-names>Omar G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Omar G. Mousa, Instructor</p><p>Scopus Author ID 57221945577</p></bio><bio xml:lang="en"><p>Omar G. Mousa, Instructor</p><p>Baghdad</p><p>Scopus Author ID 57221945577</p></bio><email xlink:type="simple">omarchemistry1987@gmail.com</email><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7114-2418</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ahmed</surname><given-names>Ahmed A.</given-names></name><name name-style="western" xml:lang="en"><surname>Ahmed</surname><given-names>Ahmed A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ahmed A. Ahmed, Dr. Sci., Professor</p><p>Scopus Author ID 57446216800</p></bio><bio xml:lang="en"><p>Ahmed A. Ahmed, Dr. Sci., Professor</p><p>Baghdad</p><p>Scopus Author ID 57446216800</p></bio><email xlink:type="simple">dr_ahmedabd@uomustansiriyah.edu.iq</email><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4799-3356</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Bufaroosha</surname><given-names>Muna</given-names></name><name name-style="western" xml:lang="en"><surname>Bufaroosha</surname><given-names>Muna</given-names></name></name-alternatives><bio xml:lang="ru"><p>Muna Bufaroosha, PhD, Associate Professor</p><p>Scopus Author ID 57216961114</p></bio><bio xml:lang="en"><p>Muna Bufaroosha, PhD, Associate Professor, Department of Chemistry</p><p>Al-Ain</p><p>Scopus Author ID 57216961114</p></bio><email xlink:type="simple">muna.bufaroosha@uaeu.ac.ae</email><xref ref-type="aff" rid="aff-7"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8843-8677</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Yusop</surname><given-names>Rahimi</given-names></name><name name-style="western" xml:lang="en"><surname>Yusop</surname><given-names>Rahimi</given-names></name></name-alternatives><bio xml:lang="ru"><p>Rahimi Yusop, Dr. Sci., Professor</p><p>Scopus Author ID 36994895800</p></bio><bio xml:lang="en"><p>Rahimi Yusop, Dr. Sci., Professor, School of Chemical Sciences and Food Technology, Faculty of Science and Technology</p><p>Bangi, Selango</p><p>Scopus Author ID 36994895800</p></bio><email xlink:type="simple">rahimi@ukm.edu.my</email><xref ref-type="aff" rid="aff-8"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1458-4724</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Yousif</surname><given-names>Emad</given-names></name><name name-style="western" xml:lang="en"><surname>Yousif</surname><given-names>Emad</given-names></name></name-alternatives><bio xml:lang="ru"><p>Emad Yousif, Dr. Sci., Professor</p><p>Scopus Author ID 26533612800</p></bio><bio xml:lang="en"><p>Emad Yousif, Dr. Sci., Professor, Department of Chemistry</p><p>Baghdad</p><p>Scopus Author ID 26533612800</p></bio><email xlink:type="simple">emad.yousif@nahrainuniv.edu.iq</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Department of Chemistry, College of Science, Al-Nahrain University, Baghdad</institution><country>Ирак</country></aff><aff xml:lang="en"><institution>College of Science, Al-Nahrain University</institution><country>Iraq</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Department of Environment, College of Energy and Environmental Science, Al-Karkh University&#13;
of Science, Baghdad</institution><country>Ирак</country></aff><aff xml:lang="en"><institution>College of Energy and Environmental Science, Al-Karkh University of Science</institution><country>Iraq</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Department of Chemical Industries, Institute of Technology-Baghdad, Middle Technical University,&#13;
Baghdad</institution><country>Ирак</country></aff><aff xml:lang="en"><institution>Institute of Technology-Baghdad, Middle Technical University</institution><country>Iraq</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>General Directorate of Education Baghdad, Karkh 1, Ministry of Education, Baghdad</institution><country>Ирак</country></aff><aff xml:lang="en"><institution>General Directorate of Education Baghdad, Karkh 1, Ministry of Education</institution><country>Iraq</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>General Directorate of Education Baghdad, Resafa 1, Ministry of Education, Baghdad</institution><country>Ирак</country></aff><aff xml:lang="en"><institution>General Directorate of Education Baghdad, Resafa 1, Ministry of Education</institution><country>Iraq</country></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>Polymer Research Unit, College of Science, Mustansiriyah University, Baghdad</institution><country>Ирак</country></aff><aff xml:lang="en"><institution>Polymer Research Unit, College of Science, Mustansiriyah University</institution><country>Iraq</country></aff></aff-alternatives><aff-alternatives id="aff-7"><aff xml:lang="ru"><institution>Department of Chemistry, College of Science, United Arab Emirates University, Al-Ain</institution><country>Объединенные Арабские Эмираты</country></aff><aff xml:lang="en"><institution>Department of Chemistry, College of Science, United Arab Emirates University</institution><country>United Arab Emirates</country></aff></aff-alternatives><aff-alternatives id="aff-8"><aff xml:lang="ru"><institution>School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti&#13;
Kebangsaan Malaysia, Bangi, Selangor</institution><country>Малайзия</country></aff><aff xml:lang="en"><institution>Universiti Kebangsaan Malaysia</institution><country>Malaysia</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>02</day><month>09</month><year>2025</year></pub-date><volume>20</volume><issue>4</issue><fpage>310</fpage><lpage>323</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Hussain S.M., Ahmed A., Kadhom M., Ahmed D.S., Hameed S.S., Mousa O.G., Ahmed A.A., Bufaroosha M., Yusop R., Yousif E., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Hussain S.M., Ahmed A., Kadhom M., Ahmed D.S., Hameed S.S., Mousa O.G., Ahmed A.A., Bufaroosha M., Yusop R., Yousif E.</copyright-holder><copyright-holder xml:lang="en">Hussain S.M., Ahmed A., Kadhom M., Ahmed D.S., Hameed S.S., Mousa O.G., Ahmed A.A., Bufaroosha M., Yusop R., Yousif E.</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.finechem-mirea.ru/jour/article/view/2275">https://www.finechem-mirea.ru/jour/article/view/2275</self-uri><abstract><sec><title>Objectives</title><p>Objectives. Exposure to ultraviolet (UV) radiation initiates a photo-oxidative degradation process in plastics that causes broken chemical bonds, weight loss, and weakened crosslinking, as well as the formation of free radicals and release of volatile substances. The work aims to study the influence of UV radiation on polystyrene films containing low concentrations of highly aromatic Schiff bases.</p></sec><sec><title>Methods</title><p>Methods. Utilizing the described casting technique, polystyrene films containing a small quantity of strong highly aromatic Schiff bases were produced. These films were then subjected to 300 h of UV irradiation. Following irradiation, analyses were conducted on the infrared spectra, weight loss, and surface morphology of the polystyrene.</p></sec><sec><title>Results</title><p>Results. The surface of the sheets was initially smooth and free of wrinkles. However, following irradiation, remarkable morphological changes were observed as the surface became more uneven. Intentional perforations and imperfections introduced into the examined surfaces were used to indicate the degradation of the polymer matrices.</p></sec><sec><title>Conclusions</title><p>Conclusions. Highly aromatic Schiff bases act as photostabilizers to significantly reduce the extent of photodegradation in polystyrene films when compared to films with no additives.</p></sec></abstract><trans-abstract xml:lang="ru"><p>Objectives. Exposure to ultraviolet (UV) radiation initiates a photo-oxidative degradation process in plastics that causes broken chemicalbonds, weight loss, and weakened crosslinking, as well as the formation of free radicals and release of volatile substances. The work aimsto study the influence of UV radiation on polystyrene films containing low concentrations of highly aromatic Schiff bases.Methods. Utilizing the described casting technique, polystyrene films containing a small quantity of strong highly aromatic Schiff baseswere produced. These films were then subjected to 300 h of UV irradiation. Following irradiation, analyses were conducted on theinfrared spectra, weight loss, and surface morphology of the polystyrene.Results. The surface of the sheets was initially smooth and free of wrinkles. However, following irradiation, remarkable morphologicalchanges were observed as the surface became more uneven. Intentional perforations and imperfections introduced into the examinedsurfaces were used to indicate the degradation of the polymer matrices.Conclusions. Highly aromatic Schiff bases act as photostabilizers to significantly reduce the extent of photodegradation in polystyrenefilms when compared to films with no additives.</p></trans-abstract><kwd-group xml:lang="en"><kwd>polystyrene films</kwd><kwd>carbonyl group index</kwd><kwd>photooxidation</kwd><kwd>photodegradation</kwd><kwd>surface roughness</kwd><kwd>Schiff’s foundations</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">The  authors  thank  the  Department  of  Chemistry  at Al-Nahrain University for partially supporting this work.</funding-statement><funding-statement xml:lang="en">The authors thank the Department of Chemistry at Al-Nahrain University for partially supporting this work.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Maul J., Frushour B.G., Kontoff J.R., Eichenauer H., Ott K.-H., Schade C. 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