Synthesis of Nanostructures with Crystalline Frameworks

초록

Nanostructured porous materials with crystalline framework walls have been synthesized in base media. A mixture of an amphiphilic triblock copolymer of poly(ethylene oxide)-b- poly(propylene oxide)-b-poly(ethylene oxide) and cetyltrimethyl ammonium bromide was used to form a supramolecular self-assembly with inorganic silica source which was crystallized and condensed during thermal treatment. Coulombic, hydrogen bonding, and van der Waals interactions between the organic and inorganic species provide an effective way of enhancing long-range periodic order. The reaction pathway is summarized as the route of (S+)(I-). XRD, TEM, SEM, BET surface area analysis were used to characterize the periodic arrangement of pore structure.