Green aqueous modification of fluoropolymers for energy storage applications

Fluoropolymers are of prime interest as solution processable materials for electronic applications such as embedded capacitors, multilayer capacitors, and high-energy-density capacitors. Herein, for the first time, we investigated an environmentally friendly green aqueous modification of fluoropolym...

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Bibliographic Details
Published inJournal of materials chemistry Vol. 22; no. 13; pp. 5951 - 5959
Main Authors Thakur, Vijay Kumar, Lin, Meng-Fang, Tan, Eu Jin, Lee, Pooi See
Format Journal Article
LanguageEnglish
Published 01.01.2012
Subjects
Biocompatibility
Capacitors
Dopamine
Energy storage
Fluoropolymers
Polyvinylidene fluorides
Toxic
Toxicology
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Summary:Fluoropolymers are of prime interest as solution processable materials for electronic applications such as embedded capacitors, multilayer capacitors, and high-energy-density capacitors. Herein, for the first time, we investigated an environmentally friendly green aqueous modification of fluoropolymers, poly(vinylidene fluoride) (PVDF) for energy storage applications. The PVDF polymer was modified in aqueous medium by using bioinspired protein dopamine without any harmful toxic chemicals. Dopamine functionalization onto pre-irradiated PVDF polymer powder was carried out using a simple reflux method to strongly bind dopamine onto the PVDF surface. The resulting dopamine modified PVDF films exhibited excellent dielectric properties, when compared with the pristine PVDF polymer. The dielectric constant can be enhanced up to 32 with fairly low dielectric loss as compared to pristine PVDF. Furthermore, the modified films were found to have good flexibility; they could be curled as easily as pristine PVDF films. Since this method avoids the use of toxic chemicals, it may allow the application of modified PVDF not only for energy storage applications but also for other applications such as in biocompatible materials.
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ISSN:0959-9428
1364-5501
DOI:10.1039/c2jm15665b