Surfactant-free emulsion polymerization of styrene in the presence of silylated montmorillonite

We report surfactant-free emulsion polymerization of styrene by using five types of montmorillonite modified by grafting monofunctional alkoxysilanes. Dynamic light scattering (DLS) determinations were strongly influenced by the presence of modified montmorillonite. FTIR and XRD spectra confirmed th...

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Bibliographic Details
Published in:Applied clay science 2009-07, Vol.45 (3), p.164-170
Main Authors: Ianchis, R., Donescu, D., Petcu, C., Ghiurea, M., Anghel, D.F., Stanga, G., Marcu, A.
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Exact sciences and technology
Latex
Mineralogy
Montmorillonite
Polystyrene
Silicates
Surfactant-free emulsion polymerization
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Summary:We report surfactant-free emulsion polymerization of styrene by using five types of montmorillonite modified by grafting monofunctional alkoxysilanes. Dynamic light scattering (DLS) determinations were strongly influenced by the presence of modified montmorillonite. FTIR and XRD spectra confirmed the incorporation of montmorillonite in the polymer matrix. The morphology of the latex particles was changed. Spherical and snowman particles indicated that the platelets were both inside and outside of the polymer particles.
ISSN:0169-1317
1872-9053
DOI:10.1016/j.clay.2009.04.012