Materials Science & Technology

FULLTEXT SEARCH
NEW: Advanced Search

4-Substituted Benzoic Acids Functionalized Multi-Walled Carbon Nanotubes in Mild Polyphosphoric Acid/Phosphorous Pentoxide

Journal Advanced Materials Research (Volumes 217 - 218)
Volume High Performance Structures and Materials Engineering
Edited by Zhou Mark
Pages 768-773
DOI 10.4028/www.scientific.net/AMR.217-218.768
Citation Hai Hui Liu et al., 2011, Advanced Materials Research, 217-218, 768
Online since March, 2011
Authors Hai Hui Liu, Ning Wang, Li Chen Hou, Wei Wei Peng, Yan Mei Jin, Xing Xiang Zhang
Keywords Carbon Nanotubes, Functionalization, Phosphorous Pentoxide, Polyphosphoric Acid (PPA)
Abstract

Pristine multi-walled carbon nanotubes (P-MWNTs) were functionalized with 4-substituted benzoic acid via ‘‘direct’’ Friedel-Crafts acylation in mild reaction medium of polyphosphoric acid (PPA)/phosphorous pentoxide (P2O5). Raman spectroscopy, thermogravimetric analysis, transmission electron microscopy were applied in this paper to demonstrate that multi-walled carbon nanotubes inherently have functional groups on their surfaces as a result of the reaction. The overall evidence indicates that the 4-substituted benzoic acid functionalization of carbon nanotube can be achieved without oxidation as pre-treatment. Thus, aryl carbonyl moieties with different length of 4-substituted alkyl acyl amine functionalized MWNTs(F-MWNTs) can be synthesized simply, without disrupting the primary structures of the nanotubes.

Full Paper PDF Get the full paper by clicking here

First page example

Preview of first page