)2mI/Jk( htgnerts tcapmDevelopment of functional polymer materials using polymer alloysReactiveBlends17Structuralcontrolof exfoliated grapheneHigh-shear screwCompatibility promotion through in situ formation (reactive blending) of copolymersPA6rubber New AlloySelective placement of oil-extended SEBS at the interface provides a highly efficient impact-absorption functionality.High-Impact PA6 alloyNano alloying with kneading and interface controlRecycled PC/PET blendsInternal Structure of PA6 Alloy (TEM)thicknesscontrolof exfoliated grapheneExfoliated graphene dispersionContent：Molding-processingtechnologycancontroldiverseformsofpolymermaterialssuchasmolecularorientation,crystallization, Molding-processing technology can control diverse forms of polymer materials such as molecular orientation, phase-separatedstructures,andinterfacialinteractions.Inaddition,crystallization, phase-separated structures, and interfacial polymeralloys,injectionmolding,thinfilming,andfibroustissueinteractions. In addition, polymer alloys, injection molding, canimpartnewfunctionsandstrengthstopolymers,suchasstrengththin filming, and fibrous tissue can impart new functions and reinforcement,andchemicalstrengths to polymers, such as strength reinforcement, resistancetheshock absorption, transparency, and chemical resistance to functionalitiesofpolymeralloyscanbeexpandedbyscrew-shapedthe component molecules. In particular, the functionalities of designs,shearandstretchflowcontrolsunderoptimizedkneadingpolymer alloys can be expanded by screw-shaped designs, shear and stretch flow controls under optimized kneading conditions,andcontrolofsurfacecharacteristicsinmolecularconditions, and control of surface characteristics in bondingmethodsusingreactivecatalysts.molecular bonding methods using reactive catalysts. Inadditiontomanufacturingnewmaterialsthroughmolding,we In addition to manufacturing new materials through areelucidatingthephysicalmechanismofmoldingthroughnanoandmolding, we are elucidating the physical mechanism of microscalemorphologicalobservationsusingtransmissionelectronmolding through nano and microscale morphological microscopy.observations using transmission electron microscopy. Appealingpoint:Appealing point：Special objectivesIt is possible to make exfoliated graphene using safe reagents with It is possible to make exfoliated graphene using safe low environmental load and to evaluate its chemical and physical reagents with low environmental load and to evaluate its properties.chemical and physical properties.Yamagata UniversityGraduate School of Organic Materials ScienceResearch Interest ：Nano carbon materialsE-mail ：haruya@yz.yamagata-u.ac.jpYamagata University Graduate School of Organic Materials ScienceTel ：+81-238-26-3074Research InterestNano carbon materialsshockabsorption,transparency,tothecomponentmolecules.thismethodisInparticular,thatE-mail ・ akira.Ishigami@yz.yamagata-u.ac.jpHP ：https://pep.yz.yamagata-u.ac.jp/en/index.htmlTel ・ +81-238-26-3430HP・https://pep.yz.yamagata-u.ac.jp/en/index.htmlE-mail ・ haruya@yz.yamagata-u.ac.jpHP ：http://polyweb.yz.yamagata-u.ac.jp/~nano/index.htmlTel ・ +81-238-26-3074HP・http://polyweb.yz.yamagata-u.ac.jp/~nano/index.htmlContentSpecial objectivesInrecentyears,biodegradablepolymersandbiopolymershavearousedmuchinterest.Wewouldliketocreatenovelmaterialsthat In recent years, biodegradable polymers and canbeappliedtowidelyapplicablecontentbystrengtheningandbiopolymers have aroused much interest. We would like to improvingtheperformanceofthesebrittlematerials.create novel materials that can be applied to widely applicable content by strengthening and improving the Yamagata UniversityGraduate School of Organic Materials Science performance of these brittle materials.Research Interest ：Polymer ProcessingYamagata University Graduate School of Organic Materials Science E-mail ：akira.Ishigami@yz.yamagata-u.ac.jpResearch InterestTel ：+81-238-26-3430Polymer ProcessingContentContent： Exfoliated graphene has attracted intensive interest due to Exfoliatedgraphenehasattractedintensiveinterestduetoitstwo-its two-dimensional and unique physical property. Typical dimensionalanduniquephysicalproperty.Typicalexfoliatedmethodexfoliated method called Hummers method use the hazardous calledHummersmethodusethehazardousoxidant.Wedevelopedaoxidant. We developed a salt electrolyte electrochemical saltelectrolyteelectrochemicalexfoliationmethodforexfoliationofexfoliation method for exfoliation of graphite. The advantage of graphite.Theadvantageofthereisathis method is that there is a environment-friendly technique environment-friendlytechniquebecauseTheonlyreagentsneededbecause The only reagents needed are salt electrolyte, water, aresaltelectrolyte,water,andlowelectricity(2.0V).Moreover,itisand low electricity (2.0V). Moreover, it is also possible to alsopossibletocontrolthestructureandnumberoflayersofcontrol the structure and number of layers of exfoliated exfoliatedgrapheneunderconditionssuchassaltconcentration/typegraphene under conditions such as salt concentration/type andappliedpotential.and applied potential.Structure control and high functionality using polymer processing technologyStructure control and high functionality using polymer processing technologyAssistant Professor Akira Ishigami Assistant Professor Akira IshigamiFabrication of exfoliated graphene using electrochemical exfoliationAssistant Professor Haruya OkimotoAssistant Professor Haruya OkimotoFabrication of exfoliated graphene using electrochemical exfoliation
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