Síntese e caracterização de nanocompósitos de poliestireno/hidroxissal lamelar

• Main Authors: Samara Boaventura de Moraes, Rodrigo Botan, Liliane Maria Ferrareso Lona
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2014-01-01
• Series: Química Nova
• Subjects: polystyrene; nanocomposites; layered hydroxide salt
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000100004&lng=en&tlng=en

Polystyrene/layered hydroxide salt (LHS) modified with sodium dodecyl sulfate was synthesized by in situ polymerization. The materials synthesized were characterized by gravimetry, X-ray diffraction (XRD), thermogravimetry analyses (TGA), differential scanning calorimetry (DSC) and the flammability test (FT). XRD demonstrated that synthesized nanocomposites in all compositions studied showed poor global dispersion of LHS in polystyrene. TGA showed a slight decrease in thermal stability. DSC curves showed that the glass transition temperature of polystyrene and nanocomposites were similar. The FT showed that the nanocomposite with low load of LHS exhibited good results.