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Influence of Clay Content and Amount of Organic Modifiers on Morphology and Pervaporation Performance of EVA/Clay Nanocomposites

Wilson, Runcy; Plivelic, Tomás LU ; Ramya, P and Ranganathaiah, C (2011) In Industrial & Engineering Chemistry Research 50 (7)(Online February 24, 2011). p.3986-3993
Abstract
Poly(ethylene-co-vinyl acetate)/organically modified clay nanocomposites were prepared using different clay loadings and by varying the amount of organic modifier. The morphology of the nanocomposites was investigated using small-angle X-ray scattering (SAXS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). SAXS results displayed intercalation of polymeric chains between the silicate layers in all the cases. The interlayer distance varies slightly between the series. TEM images showed a better dispersion of the clay platelets at lower loading for both series of samples. The pervaporation performances of membranes were analyzed using a chloroform/acetone mixture. Membranes displayed high selectivity. The... (More)
Poly(ethylene-co-vinyl acetate)/organically modified clay nanocomposites were prepared using different clay loadings and by varying the amount of organic modifier. The morphology of the nanocomposites was investigated using small-angle X-ray scattering (SAXS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). SAXS results displayed intercalation of polymeric chains between the silicate layers in all the cases. The interlayer distance varies slightly between the series. TEM images showed a better dispersion of the clay platelets at lower loading for both series of samples. The pervaporation performances of membranes were analyzed using a chloroform/acetone mixture. Membranes displayed high selectivity. The influence of feed composition on pervaporation was analyzed. The nanoclay content and the influence of free volume on pervaporation performance were also investigated in detail. A drop in selectivity and an increase in permeation rate were observed at higher clay loadings. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
EVA/clay nanocomposite, SAXS, Selectivity, Pervaporation, Free volume
in
Industrial & Engineering Chemistry Research
volume
50 (7)
issue
Online February 24, 2011
pages
3986 - 3993
publisher
The American Chemical Society
external identifiers
  • wos:000288833700037
  • scopus:79953272983
ISSN
0888-5885
DOI
10.1021/ie102259s
language
English
LU publication?
yes
id
6c2c2951-b5b9-44a0-9438-823aba24ee77 (old id 1833813)
date added to LUP
2011-03-02 07:24:48
date last changed
2017-10-01 03:09:23
@article{6c2c2951-b5b9-44a0-9438-823aba24ee77,
  abstract     = {Poly(ethylene-co-vinyl acetate)/organically modified clay nanocomposites were prepared using different clay loadings and by varying the amount of organic modifier. The morphology of the nanocomposites was investigated using small-angle X-ray scattering (SAXS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). SAXS results displayed intercalation of polymeric chains between the silicate layers in all the cases. The interlayer distance varies slightly between the series. TEM images showed a better dispersion of the clay platelets at lower loading for both series of samples. The pervaporation performances of membranes were analyzed using a chloroform/acetone mixture. Membranes displayed high selectivity. The influence of feed composition on pervaporation was analyzed. The nanoclay content and the influence of free volume on pervaporation performance were also investigated in detail. A drop in selectivity and an increase in permeation rate were observed at higher clay loadings.},
  author       = {Wilson, Runcy and Plivelic, Tomás and Ramya, P and Ranganathaiah, C},
  issn         = {0888-5885},
  keyword      = {EVA/clay nanocomposite,SAXS,Selectivity,Pervaporation,Free volume},
  language     = {eng},
  number       = {Online February 24, 2011},
  pages        = {3986--3993},
  publisher    = {The American Chemical Society},
  series       = {Industrial & Engineering Chemistry Research},
  title        = {Influence of Clay Content and Amount of Organic Modifiers on Morphology and Pervaporation Performance of EVA/Clay Nanocomposites},
  url          = {http://dx.doi.org/10.1021/ie102259s},
  volume       = {50 (7)},
  year         = {2011},
}