ItisagreatpleasureforustopresentacollectionofpapersreadattheToyoichiTanaka MemorialSymposiumonGelsheldon10-12September2008inTokyo. ProfessorToyoichi TanakaofMIThasdevelopedgelscienceafterthediscoveryofvolumephasetransition,but unfortunately he passed away so early in 2000. His friends and co-workers decided to organizeasymposiumcommemoratingthe30thanniversaryforthediscoveryofthevolume phasetransitionin1978. ThesymposiumwasheldinastyleofFaradayDiscussions. FullpaperswritteninJapanese weresentbeforehandtoalltheparticipants,anddiscussionswereactiveafterashort(5min) presentationofeachpaper. SinceJapaneselanguageisverydifferentfromEuropeanl- guages,weJapanesecouldspeakfreelywithoutanyhesitation. Althoughalltheparticipants are good at English as proved by their publication of many papers in English, yet the discussionofdelicatenuancescouldbedonebetterinJapanesethaninEnglish. Afterthesuccessfulsymposium,paperswritteninEnglishtakingintoaccountthedisc- sionsduringthesymposiumwerereviewedbyexpertscientists,andthepaperswererevised accordingly. We hope that this collection of papers is interesting and useful for all the scientistsandengineersworkingintheareaofgelsbothinacademiaandindustry.
Finally, wethankallthecontributorsandreviewersfortheirenthusiasticefforts. Summer2009 MasayukiTokita KatsuyoshiNishinari v Contents StructureandFunctionalPropertiesofGels CompetitiveHydrogenBondsandCononsolvencyofPoly(N-isopropylacrylamide)s inMixedSolventsofWater/Methanol...1 FumihikoTanaka,TsuyoshiKoga,andFranc,ItisagreatpleasureforustopresentacollectionofpapersreadattheToyoichiTanaka MemorialSymposiumonGelsheldon10-12September2008inTokyo. ProfessorToyoichi TanakaofMIThasdevelopedgelscienceafterthediscoveryofvolumephasetransition,but unfortunately he passed away so early in 2000. His friends and co-workers decided to organizeasymposiumcommemoratingthe30thanniversaryforthediscoveryofthevolume phasetransitionin1978. ThesymposiumwasheldinastyleofFaradayDiscussions. FullpaperswritteninJapanese weresentbeforehandtoalltheparticipants,anddiscussionswereactiveafterashort(5min) presentationofeachpaper. SinceJapaneselanguageisverydifferentfromEuropeanl- guages,weJapanesecouldspeakfreelywithoutanyhesitation. Althoughalltheparticipants are good at English as proved by their publication of many papers in English, yet the discussionofdelicatenuancescouldbedonebetterinJapanesethaninEnglish.
Afterthesuccessfulsymposium,paperswritteninEnglishtakingintoaccountthedisc- sionsduringthesymposiumwerereviewedbyexpertscientists,andthepaperswererevised accordingly. We hope that this collection of papers is interesting and useful for all the scientistsandengineersworkingintheareaofgelsbothinacademiaandindustry. Finally, wethankallthecontributorsandreviewersfortheirenthusiasticefforts. Summer2009 MasayukiTokita KatsuyoshiNishinari v Contents StructureandFunctionalPropertiesofGels CompetitiveHydrogenBondsandCononsolvencyofPoly(N-isopropylacrylamide)s inMixedSolventsofWater/Methanol...1 FumihikoTanaka,TsuyoshiKoga,andFranccoiseM. Winnik RheologicalPropertiesofSolutionsofaPolyampholyticBlockCopolymer...9 TomomitsuSekitani,KenjiUrayama,ManabuTsuruta,Masahiko Mitsuzuka,andToshikazuTakigawa Helix-CoilTransitionandAssociationBehaviorofWater-SolublePolypeptides HavingHydrophobicAlkylSideChains...15 KatsuhiroInomata,TomokazuTakai,NoriyoshiOhno,YoshiakiYamaji, ErinaYamada,HidekiSugimoto,andEijiNakanishi EffectsofSurfactantsontheLinearRheologyofTelechelic AssociatingPolymers...23 TsutomuIndei Time-DependentFlowPropertiesofTransientHydrogelswith TemporalNetworkJunctions...3
1 IsamuKaneda,TsuyoshiKoga,andFumihikoTanaka StressGrowthinTransientPolymerNetworksunderStartup ShearFlow...39 TsuyoshiKoga,FumihikoTanaka,andIsamuKaneda Self-assemblingStructuresandSol-GelTransitionofOptically ActiveandRacemic12-HydroxystearicAcidsinOrganicSolvents...47 HiroyukiTakeno,TomomitsuMochizuki,KazutoYoshiba,ShingoKondo, andToshiakiDobashi TheGelPointandNetworkFormationinthePolymerisation ofanEpoxy-AmineSystemIncludingRingFormation...55 YutakaTanaka,JohnL. Stanford,andRobert. F. T. Stepto TheEffectiveSurfaceRoughnessScalingoftheGelationSurface PatternFormation...63 T. Mizoue,M. Tokita,H. Honjo,H. J. Barraza,andH. Katsuragi DiscontinuousGrowthofOnionStructureUnderShear...69 ShujiFujii vii viii Contents StudyonSelf-AssemblyofTelechelicHydrophobicallyModi?ed Poly(N-isopropylacrylamide)inWater...77 TaisukeFujimoto,EmiYoshimoto,andMasahikoAnnaka SomeThoughtsontheDe?nitionofaGel...87 KatsuyoshiNishinari SwellingofGels StructuralTransitionofNon-ionicPoly(acrylamide)Gel...95 Sada-atsuMukai,HirohisaMiki,VasylGaramus,Regine Willmeit,andMasayukiTokita SwellingEquilibriumofaGelinBinaryMixedSolvents...1
01 HirohisaMiki,ShinYagihara,Sada-atsuMukai,andMasyukiTokita RevisittoSwellingKineticsofGels...107 KenjiUrayama,NaokiMurata,ShojiNosaka,MasahiroKojima, andToshikazuTakigawa EffectofResidualSwellingSolventonNanoporeFormationinReplication ofSwollenHydrogelNetwork...113 Ken-ichiKurumada,AtsushiSuzuki,EmikoOtsuka,SusumuBaba,Youhei Seto,KeisukeMorita,andTakanoriNakamura SwellingPropertiesofPhysicallyCross-linkedPVAGelsPrepared byaCast-dryingMethod...121 EmikoOtsukaandAtsushiSuzuki In?uenceofHeatingTemperatureonCookingCurveofRice...127 KunioNakamura,AtsukoAkutsu,AyumiOtake,andHatsueMoritaka IndustrialandbiomedicalApplication EffectsofThicknessandCurvatureontheAdhesionProperties ofCylindricalSoftMaterialsbyaPointContactMethod...135 D. Sakasegawa,M. Goto,andA. Suzuki ElectrophoresisofDyesandProteinsinPoly(Acrylamide)GelContaining ImmobilizedBilayerMembranes...143 HirokiIshihara,GohMatsuo,TakanoriSasaki,YukoSaito,MakotoDemura, andKaoruTsujii AnApplicationofMicrocapsulesHavingEnzyme-degradableGel MembraneToCellCulture...149 ToshiakiDobashi,MichiruKoike,KentaroKobayashi,YasuyukiMaki, TakaoYamamoto,andSusumuTanaka DevelopmentofaNovelHydrogeltoPreventBacterial InfectiousDiseases...1
55 NorihiroKato,AzumiKobayashi,HiroshiMotohashi,YuOzonoe,Tomohiro Morohoshi,andTsukasaIkeda EffectofParticlesAlignmentonGiantReductioninDynamic ModulusofHydrogelsContainingNeedle-ShapedMagneticParticles...163 TetsuMitsumata,YuheiKosugi,andShunsukeOuchi Contents ix MolecularDiffusioninPolysaccharideGelSystemsasObservedbyNMR...171 ShingoMatsukawa,DaisukeSagae,andAkikoMogi ChainReleaseBehaviorofGellanGels...177 KhandkerS. HossainandKatsuyoshiNishinari GelFormationofRecombinantFibrinogenLackingaCTermini...187 KenjiKuboa,YukaMasuda,YoshiharuToyama,NobukazuNameki, NobuoOkumura,andMasanoriOchiai DynamicLightScatteringStudyofPigVitreousBody...195 ToyoakiMatsuura,NaokazuIdota,YoshiakiHara,andMasahikoAnnaka TheRelationshipBetweentheChangesinLocalStiffnessofChicken Myo?brilandtheTendernessofMuscleDuringPostmortemAging...205 T. Iwasaki,Y. Hasegawa,K. Yamamoto,andK. Nakamura Index...211 ProgrColloidPolymSci(2009)136:1-8 DOI:10. 1007/2882_2009_1 CompetitiveHydrogenBondsandCononsolvency ofPoly(N-isopropylacrylamide)sinMixedSolvents ofWater/Methanol 1 1 2 FumihikoTanaka ,TsuyoshiKoga ,andFranc,oiseM.
Competitive Hydrogen Bonds and Cononsolvency of Poly(N-isopropylacrylamide)s in Mixed Solvents of Water/Methanol.- Rheological Properties of Solutions of a Polyampholytic Block Copolymer.- Helix-Coil Transition and Association Behavior of Water-Soluble Polypeptides Having Hydrophobic Alkyl Side Chains.- Effects of Surfactants on the Linear Rheology of Telechelic Associating Polymers.- Time-Dependent Flow Properties of Transient Hydrogels with Temporal Network Junctions.- Stress Growth in Transient Polymer Networks under Startup Shear Flow.- Self-assembling Structures and Sol-Gel Transition of Optically Active and Racemic 12-Hydroxystearic Acids in Organic Solvents.- The Gel Point and Network Formation in the Polymerisation of an Epoxy-Amine System Including Ring Formation.- The Effective Surface Roughness Scaling of the Gelation Surface Pattern Formation.- Discontinuous Growth of Onion Structure under Shear.- Study on Self-Assembly of Telechelic Hydrophobically Modified Poly(N-isopropylacrylamide) in Water.- Some Thoughts on The Definition of a Gel.- Structural Transition of Non-ionic Poly(acrylamide) Gel.- Swelling Equilibrium of a Gel in Binary Mixed Solvents.- Revisit to swelling kinetics of gels.- Effect of Residual Swelling Solvent on Nanopore Formation in Replication of Swollen Hydrogel Network.- Swelling Properties of Physically Cross-linked PVA Gels Prepared by a Cast-drying Method.- Influence of Heating Temperature on Cooking Curve of Rice.- Effects of Thickness and Curvature on the Adhesion Properties of Cylindrical Soft Materials by a Point Contact Method.- Electrophoresis of Dyes and Proteins in Poly(Acrylamide) Gel Containing Immobilized Bilayer Membranes.- An Application of Microcapsules Having Enzyme-degradable Gel Membrane to Cell Culture.- Development of a Novel Hydrogel to Prevent Bacterial Infectious Diseases.- Effect of Particles Alignment on Giant Reduction in Dynamic Modulus of Hydrogels Containing Needle-Shaped Magnetic Particles.- Molecular Diffusion in Polysaccharide Gel Systems as Observed by NMR.- Chain Release Behavior of Gellan Gels.- Gel Formation of Recombinant Fibrinogen Lacking ?C Termini.- Dynamic Light Scattering Study of Pig Vitreous Body.- The Relationship Between the Changes in Local Stiffness of Chicken Myofibril and the Tenderness of Muscle During Postmortem Aging.
