分离丙烯丙烷的超薄聚电解质中空纤维复合膜的制备王宏琳

/王宏琳　杨大令　张守海　王志鹏　闻学秋　蹇锡高*(　116012)　　PPESK(Tg263～305℃),-,(PVP)Ag+,,1μm。PVP、Ag+、、/。,200kPa、23℃,PVP10%、n(Ag+)∶n(CO)=1∶1,16.32GPU,4.79。　,,,,:O631;TB383　　　　　:A　　　　　:1000-0518(2007)03-0241-042006-03-14,2006-05-27“”(2003AA33G030),“”(2003CB615700):,,,;E-mail:[e-mail];:、、、、,,-。,(-2--2-(POZ)、(PVP)),,、[1]。,2pπ5sσ,4dπ*-2pπ,[2]。,,。,-[3],,,。,[4,5],。(PPESK),(PVP)Ag+,(1μm),PVP、Ag+、、。1　1.1　(PPESK),[6,7],η=0.68;K-30(PVP);AgNO3,99.8%;CuSO4,99%;LiNO3,;N,N-(DMAc),。JSM-5600LV(SEM)();、,[8],,200kPa,。1.2　180gPPESKLiNO325∶0.8300mLDMAc。、。。,,,/。,[9]。,[8]。PVP,AgNO32h。243Vo.l24No.320073　　　　　　　CHINESEJOURNALOFAPPLIEDCHEMISTRY　　　　　　　Mar.2007(-0.005MPa);5min,70℃5h12h。2　2.1　PVPAg+,PVP1。,Ag+,PVP(),,,PVP,。Ag+,,4.79。PVP10%,Ag+,Ag+。PVP,。1　PVPTable1　InfluenceofPVPconcentrationontheperformanceofgasseparationn(Ag+)∶n(CO)ω(PVP)/%01510150∶1PC3H8/GPU35.2826.1221.053.44-PC3H6/GPU35.4626.5422.363.790.1α(C3H6/C3H8)1.011.021.061.10-1∶1PC3H8/GPU35.2825.2320.443.41-PC3H6/GPU35.4626.6522.3616.320.13α(C3H6/C3H8)1.011.051.094.79-　　1GPU=7.5×10-10cm/(sPa).1PVPSEM。,PVP,。ω(PVP)=10%,1μm。ω(PVP)=15%,,。1　PVPFig.1　SEMimagesofthesectionsofthin-layerhollowfibercompositemembranescoatedwithPVPω(PVP)/%:a.0;b.5;c.10;d.152.2　Ag+2n(Ag+)∶n(CO)/。,n(Ag+)∶242　　　　　　　　　　　　　　　　　　　24　2　n(Ag+)∶n(CO)/Fig.2　InfluenceofmoleratioofAg+toCOonpropyleneandpropaneseparationn(CO),。4.794.23。n(Ag+)∶n(CO)0.3∶1.0,,Ag+(3),,,Ag+;n(Ag+)∶n(CO)=1∶1,4.79,Ag+PVP,,Ag+,/,Ag+。2.3　3,(),,。,Ag+,,。4,3　、Fig.3　PropyleneandpropanepermeancesofcompositemembraneasafunctionoffeedpressurePermeatepressure:atmospheric(0kPa);temperature:23℃4　、Fig.4　PropyleneandpropanepermeancesofcompositemembraneasafunctionoftemperatureFeedpressure:200kPa5　23℃(a)、60℃(b)SEMFig.5　SEMimagesofsurfaceofcompositemembraneat(a)23℃and(b)60℃243　3:/,,,;。,Ag+[10],,。SEM(5),23℃,;60℃,,Ag+。2.4　(Ag+Cu2+)/2。,Ag+,Cu2+,,、。2　、Table2　Influencesofdifferenttypesoftransitionmetalsonpermeationofpropyleneandpropanen(Ag+)∶n(CO)n(Cu+)∶n(CO)00.10.30.51200.10.30.512PC3H6/GPU3.795.846.2411.8216.3212.193.793.743.773.763.733.67PC3H8/GPU3.443.393.413.433.413.403.443.363.373.333.213.24　　　　1　SangWK,JongHK,KyungSO,JongokW,KookheonC,HoonSK,YongSK.JMembrSci[J],2004,236:163　2　YongSP,JongokW,YongSK.JMembrSci[J],2001,183:163　3　JongHK,JongokW,YongSK.JMembrSci[J],2004,237:199　4　TeramotoM,MatsuyamaH,YamashiroT,KatayamaY.JChemEng[J],1986,19:419　5　YongY,WonJ,KangYS.Macromolecules[J],2000,33:3185　6　JianXG,MengYZ,ZhengHB.CN93109180.2[P],1993　7　JianXG,MengYZ,ZhengHB.CN93109179.9[P],1993　8　FuHT,YangDL,ZhangSH,YangYQ,JinZ,JianXG.PolymerAcadcaicSymposium,Beijing,2005　9　DaiY,JianXG,ZhangSH,MichealDG.JMembrSci[J],2001,188:195　10　HuangHH,NiXP,LoyGL,ChewOH,TanKL,LohFC,PengJF,XuGQ.Langmuir[J],1996,12:909PreparationofThin-layerHollowFiberPolymerElectrolyteCompositeMembraneforPropyleneandPropaneSeparationWANGHong-Lin,YANGDa-Ling,ZHANGShou-Hai,WANGZhi-Peng,WENXue-Qiu,JIANXi-Gao*(DepartmentofPolymerMaterials,DalianUniversityofTechnology,Dalian116012)Abstract　Asubstratemembraneofpolyphthalazinoneethersulfoneketone(PPESK)withspecialmorphologywasspun,andtheasymmetrichollow-fibermembraneswasformedthoughdry/wetspinning.Thecompositemembranewiththinlayer(≈1μm)wassuccessfullypreparedbycoatingPVPandcomplexingsilverion.TheinfluencesofPVPconcentration,moleratioofAg+toCO,operationalpressureandtempe-rature,typesoftransitionmetalsweresystematicallystudied.At200kPaand23℃,thepropylenepermeancewas16.32GPU,andpropylene/propaneselectivityreached4.79whentheconcentrationofPVPwas10%andmoleratioofAg+toCOwas1.Keywords　PPESK,hollowfiber,compositemembrane,polymerelectrolyte,transitionmetal244　　　　　　　　　　　　　　　　　　　24