Surface covalent encapsulation of multiwalled carbon nanotubes with poly(acryloyl chloride) grafted poly(ethylene glycol)

Multiwall carbon nanotube (MWNT) was grafted with polyacrylate‐g‐poly (ethylene glycol) via the following two steps. First, hydroxyl groups on the surface of acid‐treated MWNT reacted with linear poly(acryloyl chloride) to generate graft on MWNT; secondly, the remaining acryloyl chloride groups were...

Full description

Saved in:
Bibliographic Details
Published in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2006-12, Vol.44 (23), p.6880-6887
Main Authors: Liu, Yan-Xin, Du, Zhong-Jie, Li, Yan, Zhang, Chen, Li, Cong-Ju, Yang, Xiao-Ping, Li, Hang-Quan
Format: Article
Language:English
Subjects:
Applied sciences
Chemical modifications
Chemical reactions and properties
Exact sciences and technology
functionalization
graft
multiwalled carbon nanotubes
Organic polymers
Physicochemistry of polymers
poly(acryloyl chloride)
poly(ethylene glycol)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Multiwall carbon nanotube (MWNT) was grafted with polyacrylate‐g‐poly (ethylene glycol) via the following two steps. First, hydroxyl groups on the surface of acid‐treated MWNT reacted with linear poly(acryloyl chloride) to generate graft on MWNT; secondly, the remaining acryloyl chloride groups were subjected to esterification with poly(ethylene glycol) leading the grafted chains on the surface of MWNTs. Thus obtained grafted MWNT was characterized using Fourier transform infrared spectrometer, transmission electron microscopy, and X‐ray photoelectron spectroscopy. Thermogravimetric analysis showed that the weight fraction of grafted polymers amounted to 80% of the modified MWNT. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 6880–6887, 2006 The polyacrylate‐g‐poly(ethylene glycol) was covalently attached to the surface of multiwalled carbon nanotubes (MWNTs) by the following two‐step reaction. Firstly, poly (acryloyl chloride) was grafted onto the acid‐treated MWNTs surfaces by the esterification reaction of nanotubes‐bound hydroxyl functional groups; secondly, the remaining acyl chloride groups were further esterified by PEG leading to the grafted chains on the surface. Because of high reactivity of grafted poly(acryloyl chloride), other polymer with reactive groups can be used for formation of various grafted polymers on the MWNTs surface.
ISSN:0887-624X
1099-0518
DOI:10.1002/pola.21748