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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vallés, Cristina
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024A data-driven model on the thermal transfer mechanism of composite phase change materialscitations
- 2024A data-driven model on the thermal transfer mechanism of composite phase change materialscitations
- 2023Tribology of Copper Metal Matrix Composites Reinforced with Fluorinated Graphene Oxide Nanosheets: Implications for Solid Lubricants in Mechanical Switchescitations
- 2020PMMA-grafted graphene nanoplatelets to reinforce the mechanical and thermal properties of PMMA compositescitations
- 2019Graphene/Polyelectrolyte Layer-by-Layer Coatings for Electromagnetic Interference Shieldingcitations
- 2018Insights into crystallization and melting of high density polyethylene/graphene nanocomposites studied by fast scanning calorimetrycitations
- 2016Effect of the C/O ratio in graphene oxide materials on the reinforcement of epoxy-based nanocompositescitations
- 2014Few layer graphene-polypropylene nanocomposites: the role of flake diametercitations
- 2014The rheological behaviour of concentrated dispersions of graphene oxidecitations
- 2013Graphene oxide and base-washed graphene oxide as reinforcements in PMMA nanocompositescitations
- 2012Reduced graphene oxide films as solid transducers in potentiometric all-solid-state ion-selective electrodescitations
- 2011Simultaneous reduction of graphene oxide and polyaniline: Doping-assisted formation of a solid-state charge-transfer complexcitations
- 2011Graphene: 2D-building block for functional nanocomposites
- 2009Effects of partial and total methane flows on the yield and structural characteristics of MWCNTs produced by CVDcitations
- 2009Processing route to disentangle multi-walled carbon nanotube towards ceramic compositecitations
- 2008Effects of partial and total methane flows on the yield and structural characteristics of MWCNTs produced by CVDcitations
- 2007CVD production of double-wall and triple-wall carbon nanotubescitations
- 2007CVD production of double-wall and triple-wall carbon nanotubescitations
- 2006Synthesis and properties of optically active polyaniline carbon nanotube compositescitations
Places of action
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article
PMMA-grafted graphene nanoplatelets to reinforce the mechanical and thermal properties of PMMA composites
Abstract
In order to realise the potential of graphene nanocomposites it is vital to control the degree of dispersion and achieve a strong graphene/polymer interface. Herein, we developed a facile ‘grafting to’ functionalization approach for graphene nanoplatelets. NH 2 -terminated graphene nanoplatelets (NH 2 -GNPs) prepared by diazonium coupling were used as a ‘platform’ to covalently graft PMMA chains to the surface of graphene through amidation between the –NH 2 groups and PMMA chains (PMMA–NH–GNPs). A degree of PMMA grafting of ∼3.8 wt% (one chain per ∼40 carbon atoms) was found to both improve the dispersion of the GNPs in a PMMA matrix and give strong graphene/polymer interfaces compared to as-provided GNPs. Thus, 2 wt% of PMMA–NH–GNPs in PMMA was found to increase the elastic modulus, strength and strain at break of PMMA, whereas the incorporation of unmodified GNPs showed poor levels of reinforcement at all loadings. Furthermore, the glass transition temperature (T g )and the onset of decomposition (T d ) of PMMA were increased by 15 °C and 29 °C, respectively, by adding 5 wt% of PMMA–NH–GNPs, whereas incorporating unmodified GNPs led to smaller increases. This work offers the possibility of controlling the properties of graphene/polymer composites through chemically tuning the graphene/polymer interface, which will have broad implications in the field of nanocomposites.