F_研究紹介2021_英語版
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The Modern Alchemist!? Polymer Materials by Molecular DesignStartAfter 1hAfter 24hPolyetherPhenolphthaleinDeveloping thin, lightweight wearable fuel cells to supply power to robots and power suits38Department of Chemistry and MaterialsDepartment of Chemistry and MaterialsOutlookforresearchOutlook for researchOutlook for students after graduationAlthoughpolymermaterials,e.g.fibers,plasticsandrubbersareessentialinourdailylife,theirwastecausessocialproblemsuchasmarinepollutionanddepletionofpetroleumresources.Prof.Kohsakainvestigatesthedevelopmentsofnewpolymermaterialsredesignedfromthestartingmoleculesinordertosolvetheseproblems.Forexample,hedevelopedanewpolymermaterialdegradableinaqueousmediatoenvironment‐friendlychemicals,whileasustainableplasticthatregeneratesthestartingmaterialswascreated.Healsoinnovatedanovelmethodtopreparepolyesterswithlowenergyconsumption.Sincepolymerchemistrysupportschemicalindustry,wehaveachancetodiscoveranewmaterialforpracticalapplication.Wealwaysenjoyexperimentsinpurechemistry,whileourgrouphasmanycollaborationswithinter‐/intra‐nationalcompaniesandresearchinstitutes.Weinnovateavarietyofnovelmaterialsfromplasticsforasustainablesocietywithintelligentmaterials.Outlook for students after graduationAllstudentscontinuetheirresearchandstudiesinmasterprogramofourgraduateschoolinordertobecomeresearchers/engineersinpolymerandorganicchemistry.Manystudentsthengotocompaniesinthechemicalindustry,whilesomestudentslearnmoreinourdoctoralprogram.AssociateProfessorYasuhiroKohsakaAssociateProfessorKohsakareceivedhisPh.D.inEngineeringfromTheTokyoInstituteofTechnologyin2011.HeworkedasanassistantprofessorinOsakaUniversity,beforestartinghiscurrentcarrieratShinshuUniversityin2015.Hewasselectedoneofthe30membersof‘EmergingInvestigators’intheworldfromPolymerChemistry(RSC).Apolymerpreparedfromaβ‐aminoacidderivativewasasolutionunderacidicconditionsandalowtemperature,butbecomeinsolubleathighertemperatures.Apolymerdegradableinaqueousmedia.Thedegradationreleasesphenolphthalein,astartingmaterialofthepolymerthatcanberecognizedasared‐coloredproductIampursuingresearchintofunctionalpolymermembranesandnanofibermaterialssuchasvaporizationmembranesformicrofuelcellsthatuseneatmethanolasfuel,self‐humidificationlayersforH2/O2fuelcells,carbonnano‐paperasnano‐porousgasdiffusionelectrodes,andnickelnano‐paperforalkalinefuelcellsusingthinelectrolytemembranes.Mylabisworkingtodevelopmaterialsthatwillmakepossiblemorecompactfuelcellsthatareboththinnerandlighter.Wearerfuelcellswouldhavenumerousapplications,includingaspowersuppliesforrobotsandpowersuits.Manygraduatesgoontocompletemaster'sprograms,afterwhichtheyusuallyfindemploymentatcompaniesinvolvedwithchemicalmaterials,organicelectronicmaterials,andelectronicdevices.AssociateProfessorToshikiKoyamaAssociateProfessorKoyamatookhiscurrentpositionin1998afterservingintheFacultyofTextileScienceandTechnologyatShinshuUniversityasanassistantprofessorandseniorassistantprofessor.Hisareaofresearchisphysicalchemistryrelatedtothedevelopmentoffunctionalpolymermaterialsanddevicesinspiredbythemovementofelectronsandionsinlivingorganisms.Thisflexiblefuelcellwithathicknessof4mmwasformedfromanarrayofsixcells.Wedevelopedthiscarbonnanoweb(CNW)electrodewithadiameterof150nm.Astudentusesanevaluationdevicetocheckthepower‐generatingpropertiesoffuelcellsbuiltwithmaterialsdeveloped

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