nONmNO91mmInnovative Interface Development(iv) ResinMatrixReactivePolymervinyl oxazolinevinyl pyrolidone(ii) (i)OriginalSynthesisQuantitativeAnalysisNovelAcidFunctionalGroupCarbonSurfaceFunctionalizationCarbon FiberDiamondMWCNTetcContent： Carbon fiber/polymer composite have recently received Carbonconsiderable attention from thick shoe sole to airplane. Diamond, which is considered as the hardest materials in the world, has been utilized for grinding, from silicon solar panel to 5G semi conductor and supports all industrial base for grinding of hard materials.Ascarbonmaterials,weusecarbonfiber,diamond,andcarbon As carbon materials, we use carbon fiber, diamond, and nanotubeetc.Developmentofinnovativeinterfacebasedoncarbon nanotube etc. Development of innovative interface based on molecular design for these carbon/moleculardesignforthesecarbon/polymercompositeshasbeenpolymer composites has been performed from fundamental performedfromfundamentalsciencetoindustrialapplications.science to industrial applications.Concretelydescribing,(i)Thenewpolymerbasedonhighly Concretely describing, (i) The new polymer based on reactiveoxazolinehasbeenoriginallydesignedandsynthesized.highly reactive oxazoline has been originally designed (ii)Quantitativeanalysisofsurfaceacidgroupsofcarbonhasand synthesized. (ii) Quantitative analysis of surface conducted.(iii)Functionalgroupsofresinmatrixhasbeendesigned.acid groups of carbon has conducted. (iii) Functional groups (iv)Structureanalysisofcarbonmaterialshavebeencarriedout.of resin matrix has been designed. (iv) Structure analysis of carbon materials have been carried out. fiber/polymerStructureAnalysisAppealing point：WehavegreatinterestforactiveinternationalR&DcollaborationSpecial objectivesfromfundamentalinterfacialsciencetoitsindustrialapplication.Yamagata UniversityGraduate School of Science and Engineering Research Interest ：PolymerCompositeReactive Polymer Content：ContentContent：ProcessabilityofpolymericmaterialsstronglydependontheirProcessabilityofpolymericmaterialsstronglydependontheir Processability of polymeric materials strongly depend on rheologicalproperties.Wearedevelopingaslip-linkmodelofrheologicalproperties.Wearedevelopingaslip-linkmodeloftheir rheological properties. We are developing a slip-link entangledpolymersthatenablesustopredictlinearandnonlinearentangledpolymersthatenablesustopredictlinearandnonlinearmodel of entangled polymers that enables us to predict linear rheologyofpolymersfromtheirmolecularweight,molecularweightrheologyofpolymersfromtheirmolecularweight,molecularweightand nonlinear rheology of polymers from their molecular distributionandbranchingstructures(currentlyforstarpolymers).weight, molecular weight distribution and branching distributionandbranchingstructures(currentlyforstarpolymers).structures (currently for star polymers).Intheleftpanel,weshowourpredictionofuniaxialelongationalIntheleftpanel,weshowourpredictionofuniaxialelongational In the left panel, we show our prediction of uniaxial viscositiesbysimulationforpolystyrenesamples.Thenonlinearityviscositiesbysimulationforpolystyrenesamples.Thenonlinearityelongational viscosities by simulation for polystyrene (strainhardening)oftheelongationalviscosityhasstronginfluence(strainhardening)oftheelongationalviscosityhasstronginfluencesamples. The nonlinearity (strain hardening) of the ontheprocessability.Oursimulationcanquantitativelypredict,elongational viscosity has strong influence on the ontheprocessability.Oursimulationcanquantitativelypredict,withoutadjustableparameters,thenonlinearityanditsenhancementprocessability. Our simulation can quantitatively predict, withoutadjustableparameters,thenonlinearityanditsenhancementwithout adjustable parameters, the nonlinearity and its byanadditionofultra-highmolecularweightcomponent.byanadditionofultra-highmolecularweightcomponent.enhancement by an addition of ultra-high molecular weight WearealsostudyingvariousphysicalpropertiesofpolymericWearealsostudyingvariousphysicalpropertiesofpolymericcomponent.materialsbycoarse-grainedmoleculardynamics(MD)simulations.materialsbycoarse-grainedmoleculardynamics(MD)simulations. We are also studying various physical properties of Asanexample,weshowtheentanglementnetworkobtainedbythepolymeric materials by coarse-grained molecular dynamics Asanexample,weshowtheentanglementnetworkobtainedbythe(MD) simulations. As an example, we show the entanglement primitivepathanalysis.primitivepathanalysis.network obtained by the primitive path analysis.Appealing point：Appealing point：Special objectivesWehavevariousexperienceincoarse-grainedMDandslip-linkWehavevariousexperienceincoarse-grainedMDandslip-linkmodelsimulations,aswellasanalysisofexperimentalrheologydata. We have various experience in coarse-grained MD and modelsimulations,aswellasanalysisofexperimentalrheologydata.slip-link model simulations, as well as analysis of experimental rheology data.Yamagata University,Graduate School of Organic Materials ScienceResearch Interest ：Polymer RheologyYamagata University Graduate School of Organic Materials ScienceE-mail ：takimoto@yz.yamagata-u.ac.jpResearch InterestTel ：+81-238-26-3076Polymer RheologyFax：+81-238-26-3410 (Department office)E-mail ・ takimoto@yz.yamagata-u.ac.jpTel ・ +81-238-26-3076HP ：http://ctwww.yz.yamagata-u.ac.jpFax ・ +81-238-26-3410 (Department office)HP・http://ctwww.yz.yamagata-u.ac.jpContent We have great interest for active international R&D collaboration from fundamental interfacial science to its industrial application. BBoonnddiinnggBBoonnddiinnggIllustration(iii)DesignFunctionalGroupApplication ExampleCNT Chemically Bonded on Carbon FiberSlip-link modelPrediction of uniaxial elongational viscosities of polystyrene samples.(a)Mw = 280k(b) the same sample as (a) with small fraction of ultra-high molecular weight component (M=3,000k)Effect: Physical anchoring Strong adhesion after washing & melt mixing(a)(b)Entanglement network obtained by primitive path analysis.(Joint research with Prof. Sathish K. Sukumaran)Yamagata University Graduate School of Science and EngineeringE-mail ：effort@yz.yamagata-u.ac.jpTel ：+81-238-26-3585Research InterestPolymer Composite Reactive Polymer HP ：http://yudb.kj.yamagata-u.ac.jp/html/211_ja.htmlhttp://tatsuhiro.yz.yamagata-u.ac.jp/wp/E-mail ・ effort@yz.yamagata-u.ac.jpTel ・ +81-238-26-3585HP・http://yudb.kj.yamagata-u.ac.jp/html/211_ja.html http://tatsuhiro.yz.yamagata-u.ac.jp/wp/havecompositerecentlyreceivedconsiderableattentionfromthickshoesoletoairplane.Diamond,whichisconsideredasthehardestmaterialsintheworld,hasbeenutilizedforgrinding,fromsiliconsolarpanelto5Gsemiconductorandsupportsallindustrialbaseforgrindingofhardmaterials.Innovative Interface for Carbon/Polymer Composite Based on Molecular DesignInnovative Interface for Carbon/Polymer Composite Based on Molecular DesignProfessor Tatsuhiro Takahashi Professor TatsuhiroTAKAHASHIPrediction of Polymer Rheology by SimulationPrediction of Polymer Rheology by SimulationProfessor Jun-ichi TakimotoProfessor Jun-ichiTakimoto
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