Title
Polymer/clay nanocomposites: Influence of ionic strength on the structure and adhesion characteristics in multilayered films
Document Type
Article
Publication Date
9-12-2008
Abstract
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. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.
Publication Source (Journal or Book title)
Macromolecular Materials and Engineering
First Page
771
Last Page
780
Recommended Citation
Stefanescu, E., Stefanescu, C., Donose, B., Garno, J., Daly, W., Schmidt, G., & Negulescu, I. (2008). Polymer/clay nanocomposites: Influence of ionic strength on the structure and adhesion characteristics in multilayered films. Macromolecular Materials and Engineering, 293 (9), 771-780. https://doi.org/10.1002/mame.200800139