2H-NMR CHARACTERIZATION OF CLAY DISPERSION AND CONFINEMENT EFFECT ON PROBE MOLECULES IN RUBBER/CLAY NANOCOMPOSITE-GELS

Ping-chuan Sun; Jian-jun Zhu; Tie-hong Chen

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2H-NMR CHARACTERIZATION OF CLAY DISPERSION AND CONFINEMENT EFFECT ON PROBE MOLECULES IN RUBBER/CLAY NANOCOMPOSITE-GELS

Papers | Updated：2021-06-21

- 2H-NMR CHARACTERIZATION OF CLAY DISPERSION AND CONFINEMENT EFFECT ON PROBE MOLECULES IN RUBBER/CLAY NANOCOMPOSITE-GELS
- Vol. 27, Issue 1, Pages: 71-76(2009)
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- Published：20 January 2009
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Ping-chuan Sun, Jian-jun Zhu, Tie-hong Chen. 2H-NMR CHARACTERIZATION OF CLAY DISPERSION AND CONFINEMENT EFFECT ON PROBE MOLECULES IN RUBBER/CLAY NANOCOMPOSITE-GELS[J]. 2009, 27(1): 71-76.
DOI：

Ping-chuan Sun, Jian-jun Zhu, Tie-hong Chen. 2H-NMR CHARACTERIZATION OF CLAY DISPERSION AND CONFINEMENT EFFECT ON PROBE MOLECULES IN RUBBER/CLAY NANOCOMPOSITE-GELS[J]. 2009, 27(1): 71-76. DOI：

摘要

2H-NMR spectroscopy of the probe molecule

deuterated benzene

was applied to characterize organo-clay dispersion and confinement effect on the local motion of benzene in rubber/clay nanocomposite-gels. The observed 2H line shapes of benzene in intercalated and exfoliated nanocomposites were obviously different

which can be used to estimate clay-dispersion quality. 2H-NMR line shapes also reflect the different influence of intercalated or exfoliated layered-silicates on local motions of benzene

implying that probe molecules exhibit different local motions depending on different confined geometry in these nanocomposites. Viscosity measurements further confirmed these NMR results.

Abstract

2H-NMR spectroscopy of the probe molecule

deuterated benzene

which can be used to estimate clay-dispersion quality. 2H-NMR line shapes also reflect the different influence of intercalated or exfoliated layered-silicates on local motions of benzene

implying that probe molecules exhibit different local motions depending on different confined geometry in these nanocomposites. Viscosity measurements further confirmed these NMR results.

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