Oriented nanoporous lamellar organosilicates templated from topologically unsymmetrical dendritic-linear block copolymers

Abstract

Dendrimers between the sheets: Environmentally responsive dendritic-linear block copolymers, based on poly(ethylene oxide) and a dendron derived from 2,2′-bis(hydroxymethyl)propionic acid (see structure), were used to organize organosilicate vitrificates into nanostructured lamellar morphologies. Upon thermolysis of the template, a perforated porous lamellar structure (4 nm) between organosilicate sheets (6-9 nm) was obtained. (Chemical Equation Presented). © 2005; Wiley-VCH Verlag GmbH & Co. KGaA.