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Journal of Nanomaterials
Volume 2008 (2008), Article ID 538421, 7 pages
Research Article

The Dependence of the XRD Morphology of Some Bionanocomposites on the Silicate Treatment

1Polymer Department, Institutul Naţional de Cercetare—Dezvoltare pentru Chimie si Petrochimie (ICECHIM), Spl. Independentei, No. 202, Sector 6, 060021 Bucharest, Romania
2“P.Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica, No. 41A, 6600 Iasi, Romania
3Faculty of Material Science and Applied Chemistry, University Politehnica of Bucharest, Clea Victoriei, No. 149, 010070 Bucharest, Romania

Received 18 March 2008; Accepted 25 September 2008

Academic Editor: C. Cui

Copyright © 2008 Doina Dimonie et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The degree of intercalation of the polyvinyl alcohol-starch blend with the layered silicate is increased if the silicates is untreated or intercalated with ammonium ions that contain small radicals. If untreated silicate like NaMMT is used, it is possible to obtain exfoliated-intercalated nanocomposites. The materials based on PVOH, starch, and Nanocor I 28, Nanocor I 33, or Cloisite 15 A can be intercalated nanocomposites. If the blend of PVOH and starch is reinforced with Cloisite 93 A, microcomposites can result. The study will continue with the analysis of the new morphologies considering the transmission electron microscopy (TEM).