The thermal stability of organically modified layered silicate (OLS) plays a key role in the synthesis and processing of polymer-layered silicate (PLS) nanocomposites. The nonoxidative thermal degradation of montmorillonite and alkyl quaternary ammonium-modified montmorillonite were examined using conventional and high-resolution TGA combined with Fourier transform infrared spectroscopy and mass spectrometry (TG-FTIR-MS) and pyrolysis/GC-MS. The onset temperature of decomposition of these OLSs was approximately 155 °C via TGA and 180 °C via TGA-MS, where TGA-MS enables the differentiation of water desorbtion from true organic decomposition. Analysis of products (GC-MS) indicates that the initial degradation of the surfactant in the OLS follows a Hoffmann elimination reaction and that the architecture (trimethyl or dimethyl), chain length, surfactant mixture, exchanged ratio, or preconditioning (washing) does not alter the initial onset temperatures. Catalytic sites on the aluminosilicate layer reduce thermal stability of a fraction of the surfactants by an average of 15-25 °C relative to the parent alkyl quaternary ammonium salt. Finally, the release of organic compounds from the OLS is staged and is associated with retardation of product transfer arising from the morphology of the OLS. These observations have implications to understanding the factors impacting the interfacial strength between polymer and silicate and the subsequent impact on mechanical properties as well as clarifying the role (advantageous or detrimental) of the decomposition products in the fundamental thermodynamic and kinetic aspects of polymer melt intercalation.

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Zeolitic wood structures made by a seeded templating process offer new ways of investigating the complex wood morphology. The technique can also be used to create hierarchical porous zeolitic materials (see Figure). The seeded growth strategy shows potential for the extension to any organisms with hierarchical structure and might make multilevel porous zeolites of other types feasible.

Hollow spheres of zeolite have been fabricated through a layer-by-layer technique using polystyrene spheres as templates and nanozeolites as 'building blocks', followed by calcination.

Hollow capsules have recently attracted much attention because their unusual properties may find wide potential applications in chemistry, biotechnology, and materials science.

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Mechanically stable zeolite monoliths containing three‐dimensional, ordered, closed macropores (see Figure) have been fabricated by hydrothermal treatment of nanozeolite seeded mesoporous silica spheres. The facile speed of sedimentation and digestion renders the whole process suitable for large‐scale production of macroporous zeolite materials, which may be used as adsorbents and dielectric insulators.