Self-assembly between graphene sheets and cationic poly(methyl methacrylate) (PMMA) particles: preparation and characterization of PMMA/graphene composites

In this study, we presented a simple approach to prepare poly(methyl methacrylate) (PMMA)/graphene composites based on the self-assembly between graphene oxide (GO) sheets and cationic PMMA emulsion particles. Briefly, cationic PMMA emulsion particles were first synthesized by a soap-free emulsion p...

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Bibliographic Details
Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2012, Vol.14 (1), p.1-9, Article 717
Main Authors: Yang, Jintao, Yan, Xiaohui, Wu, Minjie, Chen, Feng, Fei, Zhengdong, Zhong, Mingqiang
Format: Article
Language:English
Subjects:
Ammonium
Cationic
Characterization and Evaluation of Materials
Chemistry and Materials Science
Emulsifiers
Emulsion polymerization
Emulsions
Graphene
Inorganic Chemistry
Lasers
Materials Science
Nanoparticles
Nanostructure
Nanotechnology
Optical Devices
Optics
Particulate composites
Photonics
Physical Chemistry
Polymethyl methacrylates
Research Paper
Self assembly
Transition temperatures
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Summary:In this study, we presented a simple approach to prepare poly(methyl methacrylate) (PMMA)/graphene composites based on the self-assembly between graphene oxide (GO) sheets and cationic PMMA emulsion particles. Briefly, cationic PMMA emulsion particles were first synthesized by a soap-free emulsion polymerization process, in which methacryloyloxyethyl trimethyl ammonium chloride was used as the emulsifier, and then blended with the aqueous solution of GO. Through electrostatic attraction, the exfoliated GO sheets were tightly adhered on the PMMA particles. The GO sheets could be reduced in situ into graphene sheets by a chemical method, without the aggregation. The structure of the prepared composites and the influences of GO and graphene sheets on the properties of PMMA were investigated. Both GO and graphene sheets can increase the glass transition temperature and storage modulus of PMMA. Moreover, graphene sheets provided a more significant reinforcement effect.
ISSN:1388-0764
1572-896X
DOI:10.1007/s11051-011-0717-0