Fast preparation of photopolymerized poly(benzyl methacrylate-co-bisphenol A dimethacrylate) monoliths for capillary electrochromatography.
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 < or =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.
Ou
Junjie
J
Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6, Canada.
Gibson
Graham T T
GT
Oleschuk
Richard D
RD
D000097:Acetonitriles; D001555:Benzene Derivatives; D001559:Benzhydryl Compounds; D053801:Capillary Electrochromatography / Q000379:methods*; D008689:Methacrylates / Q000138:chemical synthesis / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D010539:Permeability; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis; D011109:Polymethacrylic Acids / Q000138:chemical synthesis / Q000737:chemistry*; D016062:Porosity; D011312:Pressure; D000098826:Bisphenol A Compounds
D000097:Acetonitriles; D001555:Benzene Derivatives; D001559:Benzhydryl Compounds; D008689:Methacrylates; D011084:Polycyclic Aromatic Hydrocarbons; D011109:Polymethacrylic Acids; C098156:polybenzylmethacrylate; C004919:ethylene dimethacrylate; C002462:4,4'-isopropylidenediphenol dimethacrylate; D000098826:Bisphenol A Compounds; C032159:acetonitrile