4-(Benzimidazolisonitrosoacetyl)biphenyl modified chitosan and its copper complex: Synthesis and electrorheological properties

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dc.authorid0000-0003-2318-6242
dc.authorid0000-0002-3361-6528
dc.authorid0000-0001-6350-7149
dc.contributor.authorKayapa, Faruk
dc.contributor.authorKaripcin, Fatma
dc.contributor.authorOzen, Muruvvet Begum
dc.contributor.authorGumus, Omer Yunus
dc.contributor.authorUnal, Halil Ibrahim
dc.date.accessioned2026-02-08T15:15:24Z
dc.date.available2026-02-08T15:15:24Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractA novel chitosan Schiff base derivative (CsB) was synthesized for the first time by a condensation reaction of chitosan with 4-(benzimidazolisonitrosoacetyl)biphenyl. As a result of the coordination reaction of copper ions, its copper(II) complex (CsBCu) was constructed. Then, the structures were confirmed by ICP-OES, ATR-FTIR, TG/ DTA, and SEM analysis. Furthermore, electrorheological (ER) properties of the synthesized compounds, as a new dry-based ER fluid, were extensively studied in silicone oil (SO). CsBCu/SO exhibited a higher shear stress value of 78 Pa at a 2.5 kV mm-1 applied electrical field than Cs/SO and CsB/SO, which is attributed to the contribution of the paramagnetic nature of the Cu element. The shear and oscillation tests revealed ER and viscoelastic behavior of the suspensions upon applying an external electric field (E).
dc.description.sponsorshipTurkish Scientific and Technological Research Council (TUBITAK) [115Z656]
dc.description.sponsorshipWe gratefully acknowledge the Turkish Scientific and Technological Research Council (TUBITAK) for the financial support of this project, numbered 115Z656.
dc.identifier.doi10.1016/j.polymer.2025.129177
dc.identifier.issn0032-3861
dc.identifier.issn1873-2291
dc.identifier.scopus2-s2.0-105017696397
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.polymer.2025.129177
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5767
dc.identifier.volume339
dc.identifier.wosWOS:001590538600001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofPolymer
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectSchiff base
dc.subjectBenzimidazole
dc.subjectElectrorheological properties
dc.subjectChitosan
dc.title4-(Benzimidazolisonitrosoacetyl)biphenyl modified chitosan and its copper complex: Synthesis and electrorheological properties
dc.typeArticle

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