Fabrication of powdery polymer aerogel as the stationary phase for high-resolution gas chromatographic separation

A kind of PPA was prepared by the (micro)emulsion polymerization and the following Friedel-crafts (F-C) crosslinking reaction, with uniformly powdery morphology, high surface area and a unique three-dimensional (3D) pore structure. For the first time, the PPA was coated on the inner face of capillary column by dynamic method.167