Crystal structures, polymers thermal degradation

The combustion of the LDH nanocomposites leads to the formation of an intercalated nanostructure of mixed metal oxides (produced by thermal degradation of LDH) and char. This hypothesis is supported by XRD, due to the presence of a peak at 1.28 nm in the epoxy-LDHl and epoxy-LDH2 after the UL-94 test. It is interesting to note that Gilman et al. reported an intercalated structure of char from montmorillonite nanocomposites, with the same interlayer spacing of the chars, 1.3 nm, independent of the chemical structure of the polymer (thermoplastic or thermosetting) or nanostructure (delaminated or intercalated). The same value observed in an LDH-based nanocomposite (1.28 nm) shows that the interlayer spacing in the char may be independent of the nature of the layered crystal. 

This volume is including information about thermal and thermooxidative degradation of polyolefine nanocomposites, modeling of catalytic complexes in the oxidation reactions, modeling the kinetics of moisture adsorption by natural and synthetic polymers, new trends, achievements and developments on the effects of beam radiation, structural behaviour of composite materials, comparative evaluation of antioxidants properties, synthesis, properties and application of polymeric composites and nanocomposites, photodegradation and light stabilization of polymers, wear resistant composite polymeric materials, some macrokinetic phenomena, transport phenomena in polymer matrix, liquid crystals, flammability of polymeric materials and new flame retardants. 

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