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Role of Molecular Weight in Polymer Wrapping and Dispersion of MWNT in a PVDF Matrix

Overview
Journal Polymers (Basel)
Publisher MDPI
Date 2019 Apr 10
PMID 30960146
Citations 3
Authors
Muthuraman Namasivayam
Mats R Andersson
Joseph Shapter
Affiliations
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Abstract

The thermal and electrical properties of a polymer nanocomposite are highly dependent on the dispersion of the CNT filler in the polymer matrix. Non-covalent functionalisation with a PVP polymer is an excellent driving force towards an effective dispersion of MWNTs in the polymer matrix. It is shown that the PVP molecular weight plays a key role in the non-covalent functionalisation of MWNT and its effect on the thermal and electrical properties of the polymer nanocomposite is reported herein. The dispersion and crystallisation behaviour of the composite are also evaluated by a combination of scanning electron microscopy (SEM) and differential scanning calorimetry (DSC).

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