Journal of Materials Chemistry · 2008 · 221 citations · 37 references
Natural SciencesMaterials EngineeringMaterials SciencePolymer ChemistryPolymer EngineeringPolymer MaterialsFire-resistant MaterialsNanocompositesPolymer ThermodynamicsPolymeric NanomaterialsThermogravimetric AnalysisThermoplastic PolymersCone CalorimetryFire-retardant PolymersFlame RetardancyFlame RetardantsFlame-retardant PolymersHeat Release RateThermal PropertiesThermal Stability
Alkyl carboxylate-modified layered double hydroxides (LDH) were prepared and used as nanofillers for poly(methyl methacrylate) (PMMA) and polystyrene (PS). The LDH intercalated with long-chain linear alkyl carboxylates (CH3(CH2)nCOO−, n = 8, 10, 12, 14, 16, 20) were prepared via anionic exchange of MgAl–nitrate, showing a systematic increase in basal spacing with longer alkyls. MgAl–undecenoate LDH was prepared by co-precipitation. The MgAl–LDHs were melt blended with poly(methyl methacrylate) and bulk polymerized with styrene to form nanocomposites. The dispersion of the MgAl–LDH in the polymers was investigated by transmission electron microscopy and X-ray diffraction. Thermal and fire properties were studied using cone calorimetry and thermogravimetric analysis; the thermal stability of both polymers was enhanced and a very significant reduction in the peak heat release rate was observed for almost all of the poly(methyl methacrylate) composites and a few of the polystyrene composites.
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Shigeo Miyata · Clays and Clay Minerals · 1975 · 990 citations
Anion-exchange reactions of layered double hydroxides
Martina Meyn, Klaus Beneke, G. Lagaly · Inorganic Chemistry · 1990 · 782 citations