■工学部_研究紹介_2017_英語版ファイル161220

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Separation Technology using Polymer MembranesKiyono LabMembraneseparationtechnologycanbefoundinvariousindustrialareas.Thetechnologyhasbecomeincreasinglyimportantanditrequiresnewmaterialsandmembranes.Inourlaboratorynovelmembranes(hollowfiberion-exchangemembranes,compositemembranesofpolydimethylsiloxanewithcarbonnanofiber,…)havebeenpreparedusingvariouspolymersandfunctionalmaterials.Transportpropertiesacrossthemembranesareinvestigated.Somescientistssaymembranetechnologyplaysacentralroleinourdailylife.Today,membraneprocessesareusedinawiderangeofindustrialapplications:desalinationofseawater,purificationofmaterials,foodandbeverage,fuelcell,gasseparation,etc.Thenumberofsuchapplicationsisstillgrowingandenvironmentalapplicationsforcleantechnologyareverypromising.RyotaroKiyonoAssociateProfessorPolymer Chemistry, Polymer MaterialsPreparation of novel polymer membranes, Analysis of transport mechanism across membranes. The apparatus for membrane separation experiments and a result. Pure liquid was obtained by the separation.Cross-sectional images of hollow fiber ion-exchange polymer membranes prepared in laboratory. Manyundergraduatestudentsadvancetoourgraduateschool.Afterthegraduation,theyworkatcompaniesthatdealwithpolymermaterialsormembraneseparationtechnology.In the FutureAfter GraduationWaterEnvironment ＆Civil EngineeringTakeuchi LabInourlaboratory,wearestudyingthenanocarbons(carbonmaterialswithinnovativefunctionsbyprecisestructurecontrolinnanometerlevel)representedbythecarbonnanotubewhichisregardedasthe21stcenturymaterial.Byprecisestructurecontrolofthenanocarbon,wehaveappliedtohigh-functionalnanocomposite,ultralightweightwire,high-performancelithiumionbatteryandelectricdoublelayercapacitor,nextgenerationfuelcellandhigh-performancemembrane.Carbonisan‘‘oldbutnew’’material.Ithasbeenattractingattentionasanadvancedmaterial..Nanocarboncanbeappliedtovariousfieldsbyprecisestructurecontrolinatomicandmolecularlevel.Lithiumionbatterythatisusedincellphones,notebookcomputersandelectricvehicleshaveahighperformance,butcapacityisnotstillenough.However,itispredictedthatlithiumionbatteryshowhighcapacityofmorethanthecurrent10timesbythenovelnanocarboninthenearfuture.Currently,watershortageisabigproblemallovertheworld.Thecurrentreverseosmosismembranehaveahighperformancebutchemicalresistanceanddurabilityarenotenough,thereforepracticaluseisnotprogressing.So,wewillactivelypromotetheinnovativewaterseparationmembranewithrobustbyusingnanocarbons.KenjiTakeuchiAssociate ProfessorGraduated ShinshuUniversity,Main research field insynthesis of nanocarbonsand their applications. Structural models of nanocarbonfamily (left side) and high resolution electron microscope images of double-walled carbon nanotubes.Challenge to Environmental Issues using Nanocarbonsof 21st Century MaterialIn the FutureStructural model of robust and high performance membrane using structure controlled nanocarbons.WaterEnvironment ＆Civil Engineering48

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