Synthesis of Poly(styrene-acrylates-acrylic acid) Microspheres and Their Chemical Composition towards Colloidal Crystal Films

In this paper, polystyrene colloidal microspheres have been prepared using hexyl acrylate (HA), ethylhexyl acrylate (EHA), isooctyl acrylate (IOA), butyl acrylate (BA), or isobutyl acrylate (IBA) as comonomers. Microspheres with diameters from 212 to 332 nm and with a polystyrene content of 65–78% w...

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Published inInternational Journal of Polymer Science Vol. 2016; no. 2016; pp. 1 - 10
Main Authors Luis A. Ríos-Osuna, Angel Licea-Claverie, F. Paraguay-Delgado, Norma A. Cortez-Lemus
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Limiteds 01.01.2016
Hindawi Publishing Corporation
Hindawi Limited
Wiley
Subjects
Acids
Acrylates
Acrylic acid
Acrylics
Chemical industry
Colloids
Colors (materials)
Core-shell structure
Crystal structure
Crystals
Emulsion polymerization
Fragility
Investigations
Microspheres
Morphology
Polystyrene resins
Styrene
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Summary:In this paper, polystyrene colloidal microspheres have been prepared using hexyl acrylate (HA), ethylhexyl acrylate (EHA), isooctyl acrylate (IOA), butyl acrylate (BA), or isobutyl acrylate (IBA) as comonomers. Microspheres with diameters from 212 to 332 nm and with a polystyrene content of 65–78% were prepared. The particles prepared in this work do not present the typical core-shell structure; as a consequence, DSC analysis showed that the microspheres exhibited only one Tg. TEM images show that the particles with comonomer content below ~30% were spherical and regular. Microspheres containing comonomer between 21 to 25% produced the less brittle films showing very iridescent colors. The films prepared from microspheres containing hexyl, ethylhexyl, and isooctyl acrylate as comonomers are firmly attached to the substrate due to their adhesive properties. The large decrease of the fragility observed in these films makes them much more attractive materials in sensing applications.
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ISSN:1687-9422
1687-9430
DOI:10.1155/2016/4527526