Green Synthesis of Poly(ethylene Glycol) Modified Multi-Walled Carbon Nanotubes and their Dispersibility

Poly (ethylene glycol) modified multi-walled carbon nanotubes were prepared by a green synthesis procedure, including oxidation, acyl chlorination and alcoholysis. All the liquid reagents were recycled by distillation or reduced pressure distillation, and complicated washing or purification was simp...

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Published inApplied Mechanics and Materials Vol. 320; pp. 456 - 459
Main Authors Jiang, Xin Yu, Peng, Zhi Guang, Chen, Xiao Qing, Yu, Jin Gang, Jiao, Fei Peng, Zeng, Dong Ming, Huang, Du Shu, Yao, Teng Meng
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.05.2013
Subjects
Functionalization
Carbon Nanotube (CN)
Dispersibility
Poly(ethylene Glycol)
Green Synthesis
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Summary:Poly (ethylene glycol) modified multi-walled carbon nanotubes were prepared by a green synthesis procedure, including oxidation, acyl chlorination and alcoholysis. All the liquid reagents were recycled by distillation or reduced pressure distillation, and complicated washing or purification was simplified. Fourier transform infrared spectroscopy, scanning electron microscopy and thermogravimetric analysis were used to characterize the samples. The results indicated that PEG was grafted to the functionalized carbon nanotubes (f-CNTs) and the mass percentage of the grafted PEG was about 12%. After sonicating f-CNTs in ethanol, the dispersibility of f-CNTs in ethanol was about 0.46 mg/mL. The stability of f-CNTs in ethanol was also tested by left standing a 0.4 mg/mL f-CNT/ethanol solution, no precipitation was found after 10 days.
Bibliography:Selected, peer reviewed papers from the 2012 China Functional Materials Technology and Industry Forum (CFMTIF 2012), November 9-12, 2012, Kunming, China
ISBN:9783037856857
3037856858
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.320.456