Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/43507

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Title
Polymer/clay nanocomposites: influence of ionic strength on the structure and adhesion characteristics in multilayered films
Author/Creator
Stefanescu, Eduard A.;  Stefanescu, Cristina;  Donose, Bogdan C.;  Garno, Jayne C.;  Daly, William H.;  Schmidt, Gudrun;  Negulescu, Ioan I.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
The aim of the present contribution is to understand how ionic strength, brought by the addition of salt to laponite/PEO nanocomposite dispersions, influences the texture and adhesion characteristics at nano- and microscales in multilayered nanocomposite films prepared from such dispersions. At the nano-scale, SAXS and XRD measurements indicated that the clay platelets orient parallel to the film plane and that the polymer chains intercalate the clay platelets regardless of salt addition. A gradual transition from an agglomerated structure, containing polymer-rich and clay-rich domains, to a fine-balanced structure with smaller distinct details without excess PEO was observed, via AFM, on the exposed edges of cryomicrotomed films with increasing ionic strength.
Relation
Macromolecular Materials and Engineering Vol. 293, Issue 9, p. 771-780
Publisher Link
http://dx.doi.org/10.1002/mame.200800139
Date
2008
Publisher
Wiley-Blackwell
Keyword(s)
films;  Laponite;  nanocomposites;  PEO;  surfaces
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/43507
Identifier
ISSN:1438-7492
Reviewed
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Subject
"Macromolecular Materials and Engineering"
 
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