THE SYNTHESIS AND CHARACTERIZATION OF SOME POROUS CROSS—LINKED POLY (VINYLACETOPHENONE) RESINS AND THEIR CAPACITIES IN ADSORBING GYPENOSIDES

(整期优先)网络出版时间:1992-01-11
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Insearchofasuitableadsorbentusedfortheenrichmentandseparationofnaturalsaponinsfromanaqueoussolution,aseriesofporouscross-linkedpoly(vinylaceto-phenone)resinsI-ⅨweresynthesizedviatheFriedel-Craftsacylationofstyrene-pinyl-benzenecopolymerbeads.Theircarbonylcontentswerecharacterizedbyinfraredspectraandelementalanalysis.Theirphysicalpropertiessuchasbulkdensities,skeletondensities,andspecificsurfaceareaswerealsodetermined.Thetestsfortheresinsadsorptionofgypenosidesshowedthatonlythoseresinswithhighcarbonylcontentsandlargespecificsurfaceareascouldfavorablyadsorbgypenosidesfromanaqueoussolutionwithmuchhighercapacities.