Investigation of the effect of laponite and crosslinkers on thermal, mechanical, swelling and conductive properties of the phtagel composite films

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dc.contributor.authorEkici, Sema
dc.contributor.authorGungor, Gizem
dc.date.accessioned2025-01-27T20:52:09Z
dc.date.available2025-01-27T20:52:09Z
dc.date.issued2017
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractPhytagel (PHG)-laponite (L) composites were prepared in the form of films by using PHG known to be biocompatible with the body, L clay which has electrical conductivity, and weak and strong crosslinkers, i.e., 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (E) and Cu2+, respectively. Composites were obtained by using laponite in two different ratios and only one concentration of Cu2+. Bare PHG and PHG films crosslinked with E were also prepared simultaneously and characterization of all the films are presented comparatively. Cu2+ ions are more effective crosslinkers than E molecules for PHG chains and increased the mechanical strength of composites as revealed in swelling studies and differential scanning calorimetry analysis. It was determined that laponite and Cu2+ ions increased the conductivity of PHG hydrogel and conductivity decreased when the amount of laponite is increased. Wet film samples had conductivity between 0.95 x 10(-8) and 5.94 x 10(-8) S cm(-1) values, while dry films were not conductive. Wet PHG, PHG-E, PHG-E-L1, and PHG-E-L2 films showed bending deformation towards the anode under electric field of 25 V in magnitude, while wet PHG-Cu-L2 films tended to bend towards the cathode side. It was concluded that these composites are intelligent hydrogel composites which can respond to stimuli such as environmental pH and electric field changes and can be considered for use in studies involving low electrical conductivity.
dc.description.sponsorshipScientific Projects Commission of Canakkale Onsekiz Mart University [FYL-2014/252]
dc.description.sponsorshipThis research was supported by the Scientific Projects Commission of Canakkale Onsekiz Mart University, FYL-2014/252.
dc.identifier.doi10.1088/1361-665X/aa5f05
dc.identifier.issn0964-1726
dc.identifier.issn1361-665X
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85014679439
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1088/1361-665X/aa5f05
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25678
dc.identifier.volume26
dc.identifier.wosWOS:000395942900003
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofSmart Materials and Structures
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectphytagel
dc.subjectlaponite
dc.subjectconductive hydrogel
dc.subjecthydrogel composite
dc.subjectcrosslinker
dc.titleInvestigation of the effect of laponite and crosslinkers on thermal, mechanical, swelling and conductive properties of the phtagel composite films
dc.typeArticle

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