Assessing organo-clay dispersion in polymer layered silicate nanocomposites: A SAXS approach |
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| Authors: | Valerio Causin Carla Marega Giuseppe Ferrara |
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| Affiliation: | a Dipartimento di Scienze Chimiche and INSTM Research Unit, Università di Padova, via Marzolo 1, 35131 Padova, Italy
b Basell Poliolefine Italia SpA—Centro Ricerche ‘Giulio Natta’, P.le Donegani 12, 44100 Ferrara, Italy |
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| Abstract: | A SAXS method for the quantitative assessment of the morphology of polymer layered silicate nanocomposites is proposed. Fitting the SAXS patterns, the number of clay layers, the periodicity of the layers in the tactoids, the thickness of the regions interposed between the clay platelets and their distributions can be measured. A good agreement with TEM data was obtained, avoiding the inconsistencies with microscopical observations often reported in the literature. |
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| Keywords: | Nanocomposites Small-angle X-ray scattering (SAXS) Transmission electron microscopy (TEM) |
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