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Polymer-clay nanocomposites prepared via in situ emulsion polymerization

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Abstract

A series of novel polystyrene and poly(butyl methacrylate) montmorillonites (MMT-Na) nanocomposite latexes have been successfully prepared by emulsion polymerization. First of all, chemical modification of MMT-Na with a reactive coupling agent (MMT-QS) has been employed for the synthesis of hybrids. Subsequently, in situ seeded emulsion polymerization of hydrophobic vinyl monomers, such as butyl methacrylate and styrene, using sodium dodecyl sulfate (SDS) and ammonium persulfate (APS) as surfactant and initiator, respectively, were used for nanocomposite preparation. This technique allowed preparing of stable nanocomposite latexes with high (30–45 wt.%) solids contents and with loading of inorganic particles up to 5 wt.%. The prepared wet dispersions were subsequently characterized by light scattering method. In order to characterize the microstructure of the clay layers, and that of the organoclay in polystyrene and poly(butyl methacrylate) nanocomposites, wide and small angle X-ray analyses (WAXS, SAXS) and transmission electron microscopy (TEM) techniques were used.

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Acknowledgments

The authors acknowledge the financial supports of the Academy of Sciences of the Czech Republic (grant KAN 100500651) and of Ministry of Education, Youth and Sports of the Czech Republic (grant ME09058).

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Authors and Affiliations

  1. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovský sq. 2, 16206, Prague 6, Czech Republic

    Zdeňka Sedláková, Josef Pleštil, Josef Baldrian & Miroslav Šlouf

  2. Hexion Specialty Chemicals, a.s., Tovární 2093, 35680, Sokolov, Czech Republic

    Pavel Holub

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  1. Zdeňka Sedláková
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  2. Josef Pleštil
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  3. Josef Baldrian
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  4. Miroslav Šlouf
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Correspondence to Zdeňka Sedláková.

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Sedláková, Z., Pleštil, J., Baldrian, J. et al. Polymer-clay nanocomposites prepared via in situ emulsion polymerization. Polym. Bull. 63, 365–384 (2009). https://doi.org/10.1007/s00289-009-0097-0

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  • DOI: https://doi.org/10.1007/s00289-009-0097-0

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