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Advanced functionalization of organoclay nanoparticles by silylation and their polystyrene nanocomposites obtained by miniemulsion polymerization

Abstract

Four types of alkoxysilanes with different organosilyl groups were used for the silylation of a commercial alkylammonium-modified montmorillonite (Cloisite 30B). TGA, XPS, DLS, FTIR, XRD, and contact angle measurements were performed for the characterization of the silylated clays. Furthermore, the behavior of these advanced hydrophobic clays in the miniemulsion polymerization process of styrene and the characterization of nanocomposites materials were followed. The hydrophobic nature is a combined result of the length of the organic chain and of the amount of silane groups grafted onto clay edges, reflected also in the final properties of the nanocomposite latexes.

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Acknowledgments

The financial support of Executive Agency for Higher Education, Research, Development and Innovation Funding postdoctoral Grants PNII-RU No. 44 (PD_206)/2010 is gratefully acknowledged. The financial support of European Social Fund—“Cristofor I. Simionescu” Postdoctoral Fellowship Programme (ID POSDRU/89/1.5/S/55216), Sectoral Operational Programme Human Resources Development 2007–2013 is acknowledged. M. C. Corobea, announces the partial support of this work by a Grant of the Romanian National Authority for Scientific Research, CNDI-UEFISCDI, Project Number PCCA 137/2012.

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Correspondence to M. C. Corobea.

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Ianchis, R., Corobea, M.C., Donescu, D. et al. Advanced functionalization of organoclay nanoparticles by silylation and their polystyrene nanocomposites obtained by miniemulsion polymerization. J Nanopart Res 14, 1233 (2012). https://doi.org/10.1007/s11051-012-1233-6

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  • DOI: https://doi.org/10.1007/s11051-012-1233-6

Keywords

  • Hydrophobic clay
  • Nanoparticles functionalization
  • Miniemulsion polymerization
  • Polystyrene
  • Nanocomposites