Porous crosslinked spherical resins for diversified applications: packing materials for size exclusion chromatography |
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| Authors: | Fernanda M.B. Coutinho Márcia A.F.S. Neves Marcos L. Dias |
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| Affiliation: | 1. Departamento de Processos Químicos, Instituto de Química, Universidade do Estado de Rio de Janeiro, Rio de Janeiro, RJ, Brazil;2. Instituto de Macromoleculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro (IMA/UFRJ), 21945-970, P.O. Box 68525 - Rio de Janeiro, RJ, Brazil |
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| Abstract: | Improvements in the synthesis of porous polymers for different applications have been carried out in our laboratory. Beads of poly(styrene-co-divinylbenzene) with morphology adequate to the application at hand were prepared. Packing materials for size exclusion chromatography (SEC) weve prepared by single-step swelling and polymerization (SSWP) and by modified suspension polymerization (MSP). High values of exclusion limit (106 and 8.0x106) were attained for SEC columns packed with poly(styrene-co-divinylbenzene) synthesized using high proportions of polystyrene, as porogen agent and divinylbenzene. The maximum values of exclusion limits were attained for SEC columns packed with beads prepared by SSWP method. |
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