Gels: Structures, Properties, and Functions

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, oiseM. 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 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. . . . . . . . . . . . . . . . . . . . . 101 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 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)sinMixedSo

This volume includes 28 contributions to the Toyoichi Tanaka Memorial Symposium on Gels which took place at Arcadia Ichigaya on September 10th-12th, 2008. The contributions from leading scientists cover a broad spectrum of topics concerning: Structure and Functional Properties of Gels - Swelling of Gels - Industrial and Biomedical Application. The symposium was held in the style of Faraday Discussions, which stimulated the active discussion. After the symposium, each manuscript was rewritten based on the discussion and the critical review. Since the research on gels is becoming more and more important both for academia and industry, this book will be an essential source of information.