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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