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Poly(vinylidene fluoride)-graft-poly(2-hydroxyethyl methacrylate) : a novel material for high energy density capacitors

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Poly(vinylidene fluoride)-graft-poly(2-hydroxyethyl methacrylate) : a novel material for high energy density capacitors

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dc.contributor.author Thakur, Vijay Kumar
dc.contributor.author Tan, Eu Jin
dc.contributor.author Lin, Meng-Fang
dc.contributor.author Lee, Pooi See
dc.date.accessioned 2012-10-03T05:59:08Z
dc.date.available 2012-10-03T05:59:08Z
dc.date.copyright 2011
dc.date.issued 2012-10-03
dc.identifier.citation Thakur, V. K., Tan, E. J., Lin, M. F., & Lee, P. S. (2011). Poly(vinylidene fluoride)-graft-poly(2-hydroxyethyl methacrylate): a novel material for high energy density capacitors. Journal of Materials Chemistry, 21(11), 3751-3759.
dc.identifier.uri http://hdl.handle.net/10220/8695
dc.description.abstract We report the graft copolymerization synthesis of novel high dielectric constant HEMA (2-hydroxyethylmethacrylate)-graft-poly(vinylidene fluoride) (PVDF) copolymers for potential applications in high energy density capacitors. In the present study the graft copolymerization reaction was introduced by irradiation (electron beam) treatment of the PVDF polymer powder. The chemical changes in the PVDF polymers after HEMA grafting were monitored and the results were evaluated by FTIR, DSC, TGA and contact angle measurement. An analysis is presented on the effectiveness of this approach as a function of electron beam operating variables including radiation dose, reaction time, reaction temperature, monomer concentration and effect of solvent. The PHEMA-g-PVDF copolymers demonstrate improved dielectric properties such as high dielectric constant, lower leakage and low dielectric loss as compared to pristine PVDF. Correlation of dielectric properties with the graft copolymerization reaction mechanism was discussed.
dc.language.iso en
dc.relation.ispartofseries Journal of materials chemistry
dc.rights © 2011 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Materials Chemistry, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1039/c0jm02408b].
dc.subject DRNTU::Engineering::Materials.
dc.title Poly(vinylidene fluoride)-graft-poly(2-hydroxyethyl methacrylate) : a novel material for high energy density capacitors
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1039/c0jm02408b
dc.description.version Accepted version

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