側(cè)鏈液晶冠醚聚硅氧烷促進傳遞的研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文側(cè)鏈液晶冠醚聚硅氧烷促進傳遞的研究姓名：楊丹申請學(xué)位級別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：賀高紅金美芳20020623AbstractThemaindiminfacilitated仃ansportresearchistodevelopselectivitypermeablehigh—fluxmembraneswitlllong—termdurabilityAmajorimpedimenttotheindustrial

2、exploitationofthistechnologyistheproblemofmembraneunstabilityIngeneral，lackofstabilityisacommonlimitationoftheliquidmembranemethodandmuchefforthasbeendevotedtoimproveitsperformanceInthisthesis，firstlythesynthesisandchara

3、cterizationofapoly(methylsiloxane)containting4((I)一undecan一1yloxy)一4(4carboxybenzo一15crown5)biphenylsidegroups，PSC11，isdescribedPSC一11displaysanematicandtwosmecticenantiotropicmesophases，whichareofinterestforapplicationi

4、nthermalcontrollingdevicesthatmightbeturnedonandoffbyexternalelectricormagneticregulationSecondlythesolutionofPSC一11inOnitrophenylnoctylehter(NPOE)wereimmobilizedinaporouspolymericmembrane(Celgard2400)topreparethesupport

5、edliquidmembranesTheexperimentsshowthestabilityofthemembraneisenhancedincomparisonwithBenzo15crown一5，becauseofthehighpartitioncoefticent(109Kc=22)ofPSC11Thesesystemhavebeentestedfbr也etransportofKandNaTheresultswereevalua

6、tedwithtransportmodelfor1：1carriercationcomplexLastlythefixed—sitecardermembranesarepreparedThatistosaythesolutionofPSC一11inchloroformwereimmobilizedinCelgard2400，thenchloroformhadbeenevaporatedinvacuumThetransportfluxof

7、l(十a(chǎn)ndNahavebeenmeasuredbythosesystemsInthosesystemsthetransportfluxofI(andNaishigherthaninsupportedliquidmembranesystems，becauseof‘jumping”transportmodelinfixed—sitecardermembraneInaddition，polymerinclusionmembranes(CTA

8、—PIM)istestedTheliquidcrystallinefunctionofPSC一11isexplainedbyexternalthermalregulationKeywords：polymethyIsiloxane；supportedliquidmembranes；liquidcrystallinecarriers；facilitatedtransport；fixedsitecarriermembrane；polymeri