SURFACE MODIFICATION OF SILICA-BASED MONOLITH WITH POLY(PENTAFLUOROPROPYL METHACRYLATE) USING SINGLE STEP PHOTOGRAFTING

摘要

Photografting has been utilized to achieve on-column functionalization of porous silica monoliths in capillaries. The pore surface was first modified with 3-((trirnethoxysilyl)propyl) methacrylate (y-MAPS) and then photografted in a single step with poly(pentafluoropropyl methacrylate) (PFM). The chromatographic performance of these grafted capillary columns was evaluated using reversed-phase separation of alkylbenzenes.