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过程工程学报 2007
InterfacialPropertiesofEthylCellulose/CelluloseAcetateBlendsbyHPLCKeywords: ethylcellulose,celluloseacetate,interfacialproperty,highperformanceliquidchromatography Abstract: Thehighperformanceliquidchromatographymethod(HPLC)withethylcellulose/celluloseacetate(EC/CA)blendsandECascolumnpackingmaterial,andsmallmolecularweightcompoundasprobemoleculeswasemployedtomeasuretheretentionvolume(VR)andequilibriumdistributioncoefficient(K)ofbothinorganicandorganicsolutes.TheinterfacialseparationpropertiesofEC/CAblendswerecharacterizedbytheHPLCdata.Theeffectsoftheblendsontheinterfacialadsorptionproperties,hydrophilicity,affinity,polarandnon-polarparametersofECmembranematerialswerestudiedsubsequently.TheresearchresultsindicatethattheinterfacialadsorptionpropertiesandhydrophilicityofEChavebeenimprovedbysolutionblendingwithCA.ThealloysaresuperiortoECintheseparationefficiencyfornon-dissociablepolarorganicsolute.TheEC/CAalloy(8020,w)issuitablefordesaltinganddesaccharifying.
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