Síntese e caracterização de nanocompósitos de poliestireno/hidroxissal lamelar
AUTOR(ES)
Moraes, Samara Boaventura de, Botan, Rodrigo, Lona, Liliane Maria Ferrareso
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2014
RESUMO
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.
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