Fast preparation of photopolymerized poly(benzyl methacrylate-co-bisphenol A dimethacrylate) monoliths for capillary electrochromatography |
| |
Authors: | Junjie Ou Graham T.T. GibsonRichard D. Oleschuk |
| |
Affiliation: | Department of Chemistry, Queen''s University, Kingston, Ontario K7L 3N6, Canada |
| |
Abstract: | A novel porous polymer monolith was prepared in situ in a fused-silica capillary using photoinitiated polymerization. Bisphenol A dimethacrylate (BPADMA) was selected as a crosslinker, copolymerized with benzyl methacrylate (BMA) in the presence of a binary porogenic solvent consisting of cyclohexanol and 1-decanol in ≤10 min. The resulting poly(BMA-co-BPADMA) monoliths exhibited good permeability and mechanical stability. Mixtures of alkylbenzenes, polycyclic aromatic hydrocarbons (PAHs) or phenolic compounds were successfully separated by CEC. A similar monolith was also prepared with ethylene dimethacrylate (EDMA) as the crosslinker instead of BPADMA to compare the separation ability of the resulting monoliths. The results indicated that poly(BMA-co-BPADMA) monoliths have better selectivity for aromatic analytes and greater chromatographic stability in higher aqueous mobile phase. |
| |
Keywords: | Capillary electrochromatography Porous polymer monolith Photoinitiation Bisphenol A dimethacrylate Monolithic column |
本文献已被 ScienceDirect 等数据库收录! |