Poly(vinyl alcohol)/CNT composites: An effect of cross-linking with glutaraldehyde

Elena V. Basiuk; Arfat Anis; Sri Bandyopadhyay; Edgar Alvarez-Zauco; Sammy L.I. Chan; Vladimir A. Basiuk

doi:10.1016/j.spmi.2008.10.007

Poly(vinyl alcohol)/CNT composites: An effect of cross-linking with glutaraldehyde

Elena V. Basiuk, Arfat Anis, Sri Bandyopadhyay, Edgar Alvarez-Zauco, Sammy L.I. Chan, Vladimir A. Basiuk

Department of Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

We propose a new method of preparation of the cross-linked composites of poly(vinyl alcohol) (PVA) with carbon nanotubes (CNTs), in which the formation of new covalent bonds does not involve the nanotube entities, but instead PVA macromolecules only. The method consists in the addition of glutaraldehyde to PVA/CNT dispersions in order to cross-link PVA chains via an acetalization reaction. The composites prepared were studied by scanning electron microscopy, atomic force microscopy, Fourier-transform infrared spectroscopy, Raman spectroscopy and thermogravimetric analysis. The addition of 0.5 and 1% of single-walled and multi-walled CNTs (SWNTs and MWNTs, respectively) considerably changes the morphology and thermal stability characteristics of the glutaraldehyde cross-linked PVA. The use of SWNTs is believed to be more advantageous due to their better dispersion within the PVA phase as compared to MWNTs.

Original language	English
Pages (from-to)	379-383
Number of pages	5
Journal	Superlattices and Microstructures
Volume	46
Issue number	1-2
DOIs	https://doi.org/10.1016/j.spmi.2008.10.007
State	Published - Jul 2009

Keywords

Carbon nanotubes
Composites
Cross-linking
Glutaraldehyde
Multi-walled
Poly(vinyl alcohol)
Single-walled

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10.1016/j.spmi.2008.10.007

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title = "Poly(vinyl alcohol)/CNT composites: An effect of cross-linking with glutaraldehyde",

abstract = "We propose a new method of preparation of the cross-linked composites of poly(vinyl alcohol) (PVA) with carbon nanotubes (CNTs), in which the formation of new covalent bonds does not involve the nanotube entities, but instead PVA macromolecules only. The method consists in the addition of glutaraldehyde to PVA/CNT dispersions in order to cross-link PVA chains via an acetalization reaction. The composites prepared were studied by scanning electron microscopy, atomic force microscopy, Fourier-transform infrared spectroscopy, Raman spectroscopy and thermogravimetric analysis. The addition of 0.5 and 1% of single-walled and multi-walled CNTs (SWNTs and MWNTs, respectively) considerably changes the morphology and thermal stability characteristics of the glutaraldehyde cross-linked PVA. The use of SWNTs is believed to be more advantageous due to their better dispersion within the PVA phase as compared to MWNTs.",

keywords = "Carbon nanotubes, Composites, Cross-linking, Glutaraldehyde, Multi-walled, Poly(vinyl alcohol), Single-walled",

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T2 - An effect of cross-linking with glutaraldehyde

AU - Basiuk, Elena V.

AU - Anis, Arfat

AU - Bandyopadhyay, Sri

AU - Alvarez-Zauco, Edgar

AU - Chan, Sammy L.I.

AU - Basiuk, Vladimir A.

PY - 2009/7

Y1 - 2009/7

N2 - We propose a new method of preparation of the cross-linked composites of poly(vinyl alcohol) (PVA) with carbon nanotubes (CNTs), in which the formation of new covalent bonds does not involve the nanotube entities, but instead PVA macromolecules only. The method consists in the addition of glutaraldehyde to PVA/CNT dispersions in order to cross-link PVA chains via an acetalization reaction. The composites prepared were studied by scanning electron microscopy, atomic force microscopy, Fourier-transform infrared spectroscopy, Raman spectroscopy and thermogravimetric analysis. The addition of 0.5 and 1% of single-walled and multi-walled CNTs (SWNTs and MWNTs, respectively) considerably changes the morphology and thermal stability characteristics of the glutaraldehyde cross-linked PVA. The use of SWNTs is believed to be more advantageous due to their better dispersion within the PVA phase as compared to MWNTs.

AB - We propose a new method of preparation of the cross-linked composites of poly(vinyl alcohol) (PVA) with carbon nanotubes (CNTs), in which the formation of new covalent bonds does not involve the nanotube entities, but instead PVA macromolecules only. The method consists in the addition of glutaraldehyde to PVA/CNT dispersions in order to cross-link PVA chains via an acetalization reaction. The composites prepared were studied by scanning electron microscopy, atomic force microscopy, Fourier-transform infrared spectroscopy, Raman spectroscopy and thermogravimetric analysis. The addition of 0.5 and 1% of single-walled and multi-walled CNTs (SWNTs and MWNTs, respectively) considerably changes the morphology and thermal stability characteristics of the glutaraldehyde cross-linked PVA. The use of SWNTs is believed to be more advantageous due to their better dispersion within the PVA phase as compared to MWNTs.

KW - Carbon nanotubes

KW - Composites

KW - Cross-linking

KW - Glutaraldehyde

KW - Multi-walled

KW - Poly(vinyl alcohol)

KW - Single-walled

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JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 1-2

ER -

Poly(vinyl alcohol)/CNT composites: An effect of cross-linking with glutaraldehyde

Abstract

Keywords

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