Imperial College London

Prof Milo Shaffer

Faculty of Natural SciencesDepartment of Chemistry

Professor of Materials Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 5825m.shaffer Website

 
 
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Assistant

 

Mr John Murrell +44 (0)20 7594 2845

 
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Location

 

M221Royal College of ScienceSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Rubio:2017:10.1021/acs.macromol.7b01047,
author = {Rubio, Carrero N and Au, H and Leese, HS and Hu, S and Clancy, AJ and Shaffer, MSP},
doi = {10.1021/acs.macromol.7b01047},
journal = {Macromolecules},
pages = {7070--7079},
title = {Grafting from versus grafting to approaches for the functionalisation of graphene nanoplatelets with poly(methyl methacrylate)},
url = {http://dx.doi.org/10.1021/acs.macromol.7b01047},
volume = {50},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Graphene nanoplatelets (GNP) were exfoliated using a nondestructive chemical reduction method and subsequently decorated with polymers using two different approaches: grafting from and grafting to. Poly(methyl methacrylate) (PMMA) with varying molecular weights was covalently attached to the GNP layers using both methods. The grafting ratios were higher (44.6% to 126.5%) for the grafting from approach compared to the grafting to approach (12.6% to 20.3%). The products were characterized using thermogravimetric analysis–mass spectrometry (TGA-MS), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), atomic force microscopy (AFM), and transmission electron microscopy (TEM). The grafting from products showed an increase in the grafting ratio and dispersibility in acetone with increasing monomer supply; on the other hand, due to steric effects, the grafting to products showed lower absolute grafting ratios and a decreasing trend with increasing polymer molecular weight. The excellent dispersibility of the grafting from functionalized graphene, 900 μg/mL in acetone, indicates an increased compatibility with the solvent and the potential to increase graphene reinforcement performance in nanocomposite applications.
AU - Rubio,Carrero N
AU - Au,H
AU - Leese,HS
AU - Hu,S
AU - Clancy,AJ
AU - Shaffer,MSP
DO - 10.1021/acs.macromol.7b01047
EP - 7079
PY - 2017///
SN - 0024-9297
SP - 7070
TI - Grafting from versus grafting to approaches for the functionalisation of graphene nanoplatelets with poly(methyl methacrylate)
T2 - Macromolecules
UR - http://dx.doi.org/10.1021/acs.macromol.7b01047
UR - http://hdl.handle.net/10044/1/52467
VL - 50
ER -