Mylabisdevelopingorganicmaterialsthatcanbequicklybrokendownandrecycledafterusethroughsimpleexposuretolightoradditionofweakacidsoralkalis.Theadditionofsuchchemicaldegradabilitytocommercialproductswilltransformthemintohigh‐performance,eco‐friendlymaterialsthatareavailableforuseinnumerousindustrialfieldsandineverydaylife.Many?graduates?are?employed?by?chemical?companies?in?the?manufacture?of?paints,?adhesives,?films,?plastics,?and?other?products.ProfessorYoshihiroItohProfessorItohtookhiscurrentpositionin2009afterservingintheFacultyofTextileScienceandTechnologyatShinshuUniversityasanassistantprofessorandassociateprofessor.Hisareasofresearchincludesyntheticpolymerchemistry,photo‐hemistry,andorganicmaterialchemistry.Hydrolyzablesurfactant‐containingpolymerparticles(latex)areutilizedasquick‐dryingwater‐basedpaintsandpigmentinks.Developing?environmentally?friendly?organic?materials?that?can?be?easily?broken?down?and?recycled?after?use6 m60 m化学?材料学科Photocatalytic?Reaction?SystemsSupported?on?Fibers?and?BeadsLB膜の製造過程30Department?of?Chemistry?and?MaterialsDepartment?of?Chemistry?and?MaterialsOutlook?for?researchOutlook?for?researchOutlook?for?students?after?graduationOutlook?for?students?after?graduationOurresearchtopicsarephotocatalystsandphotochemicalreactorsforcontrolledphotocatalyticoxidationofaromaticcompoundsandphotodecompositionofimpurityinwater.Photocatalystnano‐hybridsforthereactionsaredesignedandfabricatedbytheLangmuir‐Blodgett(LB)processandobservedbywaveguidespectroscopy.Wedevelopedanovelphotochemicalreactorwithanetworkoflightguidetodeliverexcitationlightandmicrochanneltotransfersubstratetoeachphotocatalyst.Partialoxidationofbenzene,waterpurificationandself‐cleaningtextileshavebeenstudiedassomeapplicationsofthephotocatalyticreactionsystems.Ourphotocatalyticreactionsystemhasbeenappliedtoefficientorganicphoto‐redoxreactions,andwillhopefullybeappliedtophotocatalyticreactionstoproducechemicalresourcesfromH2OandCO2asanartificialphotosynthesisinthecomingfuture.Researchworkinourlaboratoryhasraisedproblem‐solvingabilityofstudents,whoworkforcompaniesinthefieldsofchemistry,chemicalplant,electronicsandmachineryaftergraduating.ProfessorHisanaoUsamiResearchAssociateinShinshuUniversityin1992.Fullprofessorin2012.Hisresearchtopicsarephoto‐catalyst,photo‐catalyticmicrochannelreactorsandfunctionaltextiles.Langmuir‐Blodgett?processNano‐complexfilmofsoapsandionsaretransferredontotheglassplatetofabricateNano‐filmofphotocatalyst.Photocatalyst?particles?onTextile?Photocatalystparticlesaredepositedonprotectioncoatingofeachfiber.A?photocatalyst?reactor?applied?to?an?incubation?plantof?lettucePhotocatalytic?reactor?with?anetwork?of?light?guide?coatedwith?photocatalystImmediately?after?adding?a?small?amount?of?a?weak?alkali?to?an?aqueous?surfactant?(detergent)?solution,?bubbles?disappear?and?solids?(hydrolyzed?product)?precipitate.Micrograph of a latexpaint-coated fibersurfaceMicrograph of a latex paint-coated paper surfacePhotograph?of?carbon‐black?latexink‐coated?paperCleavablematerials,whichcanbeconvertedintonon‐toxicsubstancesundermildconditionsafteruse,havebeenreceivingagreatdealofattention.Ifmaterialscanbebrokendownandrecycledwhenneeded,theyarenotonlyenvironmentallyfriendly,butalsofunctional.Iampursuingresearchtoaddchemicaldegradabilitytocommonlyusedorganicmaterialssuchassurfactantsandplastics.
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