[Syntheses of polymer coated silica packing materials and their retention behaviors for reversed-phase liquid chromatography].
The polymer coated silica packings C or D with methylmethacrylate(MMA) or MMA-ethylene dimethacrylate(EDMA) monomer were prepared. For the packing materials the polymer coated degree, effects of cross-linking agent and retention behavior were characterized by diffuse reflectance infrared Fourier transform spectroscopy, elemental analysis, size exclusion chromatography and reversed-phase liquid chromatography. The results showed that polymer coated degree on silica depended on the amount of monomer, and the volume of micropore of the meterials, which was controlled more by the cross-linked structure than by the linear structure. The hydrophobicity, retention ratio and number of theoretical plate (80% methanol and 60% acetonitrile) of the packing materials in comparison with those of C18 are discussed. The polymer coated silica packings C and D showed the same stereoselectivity for separation of aromatic compounds, such as triptycene.
Zhang
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Shenzhen Polytechnic, Shenzhen 518055, China. zhangying999@163.net
Kong
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L
D001554:Benzene / Q000032:analysis; D002853:Chromatography, Liquid / Q000295:instrumentation* / Q000379:methods; D003432:Cross-Linking Reagents; D008768:Methylmethacrylates; D011108:Polymers; D011721:Pyrenes / Q000032:analysis; D012822:Silicon Dioxide
D003432:Cross-Linking Reagents; D008768:Methylmethacrylates; D011108:Polymers; D011721:Pyrenes; D012822:Silicon Dioxide; D001554:Benzene