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Effect of lithium salt concentrations on blended 49% poly(methyl methacrylate) grafted natural rubber and poly(methyl methacrylate) based solid polymer electrolyte

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dc.citedby63
dc.contributor.authorSu'ait M.S.en_US
dc.contributor.authorAhmad A.en_US
dc.contributor.authorHamzah H.en_US
dc.contributor.authorRahman M.Y.A.en_US
dc.contributor.authorid57223117728en_US
dc.contributor.authorid16306307100en_US
dc.contributor.authorid6602504994en_US
dc.contributor.authorid55347217400en_US
dc.date.accessioned2023-12-29T07:47:18Z
dc.date.available2023-12-29T07:47:18Z
dc.date.issued2011
dc.description.abstractThe effect of lithium salts (lithium tetrafluoroborate, LiBF4 and lithium perchlorate, LiClO4) as doping salts in rubber-polymer blends, 49% poly(methyl methacrylate) grafted natural rubber (MG49) and poly(methyl methacrylate) (PMMA) in solid polymer electrolyte (SPE) film for electrochemical devices application was investigated. The electrolyte films were prepared via the solution casting technique using 0-25 wt.% lithium salt. The effect of the lithium salts on chemical interaction, ionic conductivity and structural and morphological studies of (70:30) MG49-PMMA films was analyzed using Fourier Transform Infrared (FT-IR) Spectroscopy, Electrochemical Impedance Spectroscopy (EIS), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Infrared analysis showed that the interactions between lithium ions and oxygen atoms occur at the ether group (C-O-C) (1500-1100 cm?1) on the MMA structure in both MG49 and PMMA. The oxygen atoms in the structure of the polymer host act as electron donor atoms and form a coordinate bond with the lithium ions from the doping salt to form polymer-salt complexes. The ionic conductivity was investigated at room temperature as well as at a temperature range from 303 K to 373 K. The ionic conductivity without the addition of salt was 1.1 � 10?12 S cm?1. The highest conductivity at room temperature for (70:30) MG49-PMMA-LiBF4 was 8.6 � 10 -6 S cm?1 at 25 wt.% of LiBF4. The ionic conductivity of (70:30) MG49-PMMA-LiClO4 was 1.5 � 10 ?8 S cm?1 at 25 wt.% of LiClO4. However, both electrolyte systems do not exhibit Arrhenius-like behavior. Systems with LiBF4 salt have higher ionic conductivity than those with LiClO 4 salt because of the differences in anionic size and lattice energy of the appropriate salt. The observations from structural and morphology studies showed that complexation and re-crystallization occur in the system. The XRD studies showed a reduction of the MMA peak intensity at 29.5? after the addition of 5-25 wt.% LiBF4 salt due to ion dissociation in the electrolyte system. Thus, this contributed to the increase of ionic conductivity in (70:30) MG49-PMMA-LiBF4. Morphological studies showed that (70:30) MG49-PMMA is homogenously blended, and no phase separation occurred. The addition of lithium salts changed the topological texture from a smooth and dark surface to a rough and bright surface. � 2011 Elsevier Ltd. All rights reserved.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.electacta.2011.06.015
dc.identifier.epage131
dc.identifier.issue1
dc.identifier.scopus2-s2.0-82955212915
dc.identifier.spage123
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-82955212915&doi=10.1016%2fj.electacta.2011.06.015&partnerID=40&md5=0aa54ab117f682de1455c234212ca2cd
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30387
dc.identifier.volume57
dc.pagecount8
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleElectrochimica Acta
dc.subject49% poly(methyl methacrylate)-grafted
dc.subjectIonic conductivity
dc.subjectNatural rubber (MG49)
dc.subjectPoly(methyl methacrylate) (PMMA)
dc.subjectSolid polymer electrolyte
dc.subjectAcrylic monomers
dc.subjectAtoms
dc.subjectChemical analysis
dc.subjectElectrochemical impedance spectroscopy
dc.subjectElectrolytes
dc.subjectEsters
dc.subjectFourier transform infrared spectroscopy
dc.subjectGrafting (chemical)
dc.subjectInorganic compounds
dc.subjectIonic conduction in solids
dc.subjectIonic conductivity
dc.subjectIons
dc.subjectLithium
dc.subjectLithium alloys
dc.subjectMorphology
dc.subjectPhase separation
dc.subjectPolymer blends
dc.subjectRubber
dc.subjectSalts
dc.subjectScanning electron microscopy
dc.subjectSemiconductor doping
dc.subjectSolid electrolytes
dc.subjectX ray diffraction
dc.subjectElectrochemical devices
dc.subjectFourier transform infra red (FTIR) spectroscopy
dc.subjectLithium tetrafluoroborate
dc.subjectPoly(methyl methacrylate) (PMMA)
dc.subjectPolymer-salt complexes
dc.subjectSolid polymer electrolytes
dc.subjectSolution-casting technique
dc.subjectStructure of the polymers
dc.subjectPolyelectrolytes
dc.titleEffect of lithium salt concentrations on blended 49% poly(methyl methacrylate) grafted natural rubber and poly(methyl methacrylate) based solid polymer electrolyteen_US
dc.typeConference paperen_US
dspace.entity.typePublication
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