One-pot synthesis of organic polymer functionalized mesoporous silicas

Polymer functionalization of ordered mesoporous silicas (OMS) offer wide applications owing to their synergy properties. In this study, a new approach for polymer OMS is demonstrated by the co-condensation silica precursor and functional bearing triethoxysilane end-group in presence tailored poly (ethylene oxide)-b-polystyrene (PEO-b-PS) amphiphilic copolymer used as pore template. The novelty strategy resides co-micellization PEO-b-PS that enables incorporation latter into silica. By changing nature polymer, well loading concentration process conditions, different polymer-mesoporous containing aryl, nitro or amide groups high content, up 38 wt% were synthesized. These materials exhibit specific surface area (488 m2 g?1) large pores (8 nm) with acceptable CO2 adsorption capacity selectivity towards CH4 N2.