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Chemical Bonding of Polymer on Carbon Nanotube

Published online by Cambridge University Press:  21 March 2011

Chengyu Wei ,
Kyeongjae Cho  and
Deepak Srivastava
Chengyu Wei
Affiliation:
Department of Mechanical Engineering, Stanford University, California
Kyeongjae Cho
Affiliation:
Department of Mechanical Engineering, Stanford University, California
Deepak Srivastava
Affiliation:
NASA Ames Research Center, MST27A-1, Moffett Field, California
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Abstract

Recently, carbon nanotubes are considered as nanoscale fibers, which can strengthen polymer composite materials. Nanotube-polymer composite materials can be used for micron scale devices with designed mechanical properties and smart polymer coating to protect materials under extreme physical conditions such as microsatellites. To explore these possibilities it is important to develop a detailed atomic scale understanding of the mechanical coupling between polymer matrix and embedded nanotubes. In this work we study the chemical bonding between polymer molecules and carbon nanotubes (CNTs) using molecular dynamics. Study shows that the bonding between polyethylene and a CNT is energetically favorable. Chemical bonds can be formed at multiple sites, which make the mechanical load transfer from the polymer chain to the tube more favorable. We will discuss about the resulting mechanical coupling between the CNTs and polymer matrix to develop efficient nano-composite materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 675: Symposium W – Nanotubes, Fullerenes, Nanostructured and Disordered Carbon , 2001 , W4.7.1
Copyright
Copyright © Materials Research Society 2001

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References

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