Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/43507
- Polymer/clay nanocomposites: influence of ionic strength on the structure and adhesion characteristics in multilayered films
Stefanescu, Eduard A.;
Donose, Bogdan C.;
Garno, Jayne C.;
Daly, William H.;
Negulescu, Ioan I.
- The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
- 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.
- Macromolecular Materials and Engineering Vol. 293, Issue 9, p. 771-780
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- journal article