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Functionalization of graphene nanoplatelets via Bingel reaction for polymer nanocomposites

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2013
Brkovic-ACAII-49.pdf (109.6Kb)
Аутори
Brković, Danijela V.
Pavlović, Vladimir B.
Pavlović, Vera P.
Obradović, Nina
Uskoković, Petar
Marinković, Aleksandar
Остала ауторства
Mitić, Vojislav V.
Obradović, Nina
Mančić, Lidija
Конференцијски прилог
Метаподаци
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Апстракт
In this study, we have performed functionalization of graphene nanoplatelets (GNPs) via Bingel reaction and investigated influence on the addition of covalently functionalized GPNs on the structural changes of the poly(methyl methacrylate). Preparation of poly(methyl methacrylate) nanocomposites with functionalized GNPs has been accomplished by drop casting method of dissolved PMMA mixed with modified graphene nanoplatelets dispersed in a N-methyl-1-pyrrolidone. Functionalizaton of graphene has been achieved under the conditions of Bingel reaction, which implies introduction of diethyl malonate on the graphene surfaces through the cyclopropane ring formation. Introduction of the cyclopropane ring on to the surface of graphene does not significantly affect the initial structural properties of graphene nanoplatelets, allowing better dispersible properties due to interaction of covalently attached diethyl malonate groups with the polymer chains. Fourier transform infrared spectroscopy (FT...IR) and elemental analysis confirmed the effectiveness of the addition of diethyl malonate via Bingel reaction on the surface of GNPs. Scanning electron microscopy (SEM) has been used to provide information on the morphology of functionalized GNPs. Prepared nanocomposites have been characterized by Raman and FTIR spectroscopy. The changes regarding glass transition temperature have been monitored with differential scanning calorimetry (DSC).

Кључне речи:
graphene nanoplatelets / Bingel reaction / polymer nanocomposites
Извор:
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade, 2013, 49-49
Издавач:
  • Belgrade : Serbian Ceramic Society
Пројекти:
  • Усмерена синтеза, структура и својства мултифункционалних материјала (RS-172057)

ISBN: 9788691562717

[ Google Scholar ]
URI
http://dais.sanu.ac.rs/123456789/427
http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/689
http://www.itn.sanu.ac.rs/opus4/files/689/Brkovic-ACAII-49.pdf
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