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Functionalization of Multi-Walled Carbon Nanotubes by Electrografting of Polyacrylonitrile

✍ Scribed by Petar Petrov; Xudong Lou; Christophe Pagnoulle; Christine Jérôme; Cédric Calberg; Robert Jérôme

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
135 KB
Volume
25
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: Multi‐walled carbon nanotubes (MWNTs) have been successfully modified with polyacrylonitrile (PAN) by a cathodic electrochemical process. The surface‐modified MWNTs afforded are then dispersible in good solvents for PAN, such as N,N‐dimethylformamide (DMF). Collected from a dilute dispersion, these MWNTs are essentially disentangled, as confirmed by transmission electron microscopy (TEM) analysis. From the differential scanning calorimetry (DSC) traces for polyacrylonitrile and polyacrylonitrile‐grafted MWNTs, the maximum grafting ratio is estimated at 0.28.

Electrochemical grafting of polyacrylonitriles onto the surface of multi‐walled carbon nanotubes.

magnified imageElectrochemical grafting of polyacrylonitriles onto the surface of multi‐walled carbon nanotubes.

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