Structure and Morphology of Polymer Nanocomposites

Several works have been published on tlie efficiency of the sol-gel process in the production of high-quality titanium dioxide from titanium alkoxide precursor [266-270], 

Good dispersion and distribution (and in the case of clay nanoparticles an exfoliated structure) are the key factors for improving properties in a nanocomposites. 

The different structure and morphologies that can be generated during the preparation of a nanocomposite depend on many parameters. The most important are method of preparations, nature of the particle functionalization, particle concentrations. A comprehensive coverage of all the different effect obtained by changing the parameters would be not possible and beyond the scope of this review. Anyway some examples in this paragraph are reported. 

The techniques used for preparation of nanocomposites (sonication in water bath, shear mixing, probe sonicator. 

96 vol%), (b) SiOj-g-PS (content of Si02 1.96 vol%), (c) Si02-g-PS (content of SiOj 6.38 vol%), (d) SiOj-g-PMMA (content of SiOj 

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