NONCOVALENT FUNCTIONALIZATION OF GRAPHENE BY WATER SOLUBLE POLY (ETHER ETHER KETONE)

Tapas Kuila, Nam Hoon Kim, Partha Khanra, Joong Hee Lee

Abstract

Water dispersible graphene has been prepared by noncovalent functionalization of graphene oxide using sulfonated poly(ether ether ketone) (SPEEK). Both the chemical and electrochemical method has been employed to noncovalently attach the SPEEK macromolecules on the surface of graphene. In chemical methods, SPEEK macromolecules are attached on the surface of graphene oxide followed by reduction using hydrazine monohydrate. On the contrary, electrochemical exfoliation of graphite to graphene occurs in presence of SPEEK macromolecules in aqueous medium under a potential difference of 30 V. The functionalized graphene has been characterized successfully to confirm the attachment of hydrophilic functionalities on to graphene.

Keywords

sulfonated poly (ether ether ketone), graphene, noncovalent functionalization, water dispersion

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IMEKO-WC-2012-TC24-P1.pdf

DOI

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IMEKO TC

TC24 - Chemical Measurements

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