简介：Systematicstudiesonthetreatmentandreuseoftheacidindustrialwatewatercontainingsodium2-Naphthylsulfonate(β-salt)from2-NaphthanolproductionprocessbyND-910resin(madebyself)isreportedinthispaper.Undertheoperationconditionsofinitialβ-saltconcentrationof10000-25000mg/LandinitialCODCrof20000-40000mg/L,theremovalratesofSodium2-NaphthylsulfonateandCODCrareover95%andover89%,respectively.Theeffluentcanbedischargeddirectlyafterbiologicaldegradation.TheworkingsorptioncapacityofND-910Resinforβ-saltisover230g/kg.Analkali-waterwashprocedureisutilizedtoregenerateresinandthereclaimingrateofβ-saltisover98%.

简介：Conventionalchloromethylation,paraformaldehyde/hydrogenchlorideinaceticacidmedium,wasappliedto1,2-dimethoxybenzene.Chloroform-solublepoly(3,4-dimethoxy-o-tolylene)wasobtainedwithanintrinsicviscosityof0.034dLg~(-1).ThepolymerwasevaluatedasacondensationredoxpolymerprecursorformedbyaFriedel-Craftsreaction.Cleavageofthemethoxygroupspresentinthispolymerresultedinpoly(3,4-dihydroxy-o-tolylene)whichmanifestedagreatair-oxidationresistance.Theredoxpropertyofthelatterpolymerwasfoundtobe1017mVbypotentiometrictitrationwith0.05Ncericammoniumnitrateat25℃.Thismidpotentialwascomparedtothatofcatechol,amonomericanalogue,underthesametitrationconditions.

简介：TheconductivitybehaviorofAl(OH)3-acrylamidehybridpolyacrylamide(hybridPAAm)indistilledwaterwasstudied.Adiscontinuityphenomenonoftheconductivity(k)versusconcentration(c)curveofthehybridPAAminacertainconcentrationregimeisfound.ThisphenomenonisdependentonthemolecularweightofthehybridPAAmandontheparticlesizeandcontentoftheAl(OH)3colloidinthehybridPAAm.ThisphenomenonwasaccountedforassumingionizationofthehybridPAAm.

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简介：Usingpolyvinylalcohol(PVA)asrawmaterialandvacuumpumpoilasoilphasemedium,PVA-basedmicrocarrierswerepreparedbysuspensionmethodThediametersofthebeadswere100-180μm.LO2cellswereculturedonPVA-basedmicrocarriersandcytodexⅢmicrocarriers.Morphology,attachmentandgrowthrateofLO2cellswerestudied.

简介：TiO_2-coatedpolystyrenenanoparticleswerepreparedinasimpleway.First,functionalPSparticlesweresynthesizedbycopolymerizingonekindofpolymerizablesurfactantwithstyrene.Thenthestabledispersionsofpolystyrenenanoparticleswereusedastemplates,andpolystyrenenanoparticleswerecoatedwithtitaniabyinsituhydrolysisoftetra-n-butyltitanate(TBT).Nosurfacetreatmentandcentrifugation/redispersioncycleprocesswereneededduringthewholeexperiment.IsolatedPSsphereswithuni...

简介：TheeffectsofHDPEmatrixtoughnessonthebrittle-ductiletransitionofHDPE/CaCO3blendsareinvestigated.NotallHDPEcanbetoughenedbyCaCO3particles.TheabilityofthematrixtoyieldplaysafundamentalroleindetermingwhetherHDPEcanbetoughenedornot.Thereexistsacriticalmatrixtoughness(Isc≈45J/m)belowwhichHDPEcannotbetoughenedobservablybyCaCO3particleatgivenaveragesize,andabovewhichthecriticalmatrixligamentthickness（τ?）isproportionaltomatriximpactstrength.

简介：Thechemicalgraftingofthiolterminatedpoly（sodiumstyrenesulfonate）（HS-PSSS）chainsfromsodiumnitrate（NaNO3）saltsolutiontoagoldsurfacewasinvestigatedwithaquartzcrystalmicrobalancewithdissipationmonitoring（QCM-D）indifferentsaltconcentrations.ItwasfoundthatatlowsaltconcentrationgraftingdensityofHS-PSSSwaslowandthegraftedchainsadoptedamushroomconformation.Withtheincreaseofsaltconcentrationpolyelectrolytechainsunderwentatransitiontowardcoiledstateduetoreductionofelectrostaticrepulsionandasaresultmorechainsweregraftedonthesurface.WhenthegraftingdensityreachedacertainlimitafterwhichfurthergraftingcausedrepulsionbetweenalreadygraftedHS-PSSSchainsandasaresultgraftedchainsadoptedabrushconformation.

简介：OrganicchelatingreagentinfluencesupontheredoxadsorptionofactivatedcarbonfibertowardsAu3-weresystematicallyinvestigated.TheexperimentalresultsindicatedthatthepresenceoforganicchelatingreagentonactivatedcarbonfiberstronglyaffectsadsorptioncapacityofactivatedcarbonfibertowardsAu3+.Thereduction-adsorptionamountofAu3+increasedthreetimesbythepresenceof8-quinolinol.Furthermore,Thereduction-adsorptionamountofAu3+dependedonthepHvalueofadsorptionandtemperature.

简介：Solublepoly(3-hexyl-2,5-thienylenevinylene)(PHTV)wasreadilysynthesizedfromthiopheneinayieldbetterthanthatoftheprecursormethodtopreparepoly(thienylenevinylene)(PTV).Thebandgapofthepolymerisabout1.8eV,whichiscomparablewiththatofPTV.Owingtotheintroductionofalkylsidegroupsontothebackboneofthepolymer,itcanbedissolvedincommonorganicsolventssuchaschloroform,THFandtoluene.ThesynthesisofsolublePHTVisaveryimportantapproachtopreventingoxidationandtoimprovingthepropertiesandtheprocessbilityofthePTV.TheexistenceofalkylsidegroupsinPHTVdoesnotaffectits,bandgapandthermalpropertiesascomparedwithPTV.AfterdopingwithFeCl3,theconductivityofPHTVisashighas1.1×10-2S/cm.ThesolublePHTVcanbeeasilytransformedintothinfilmwithmuchbetterqualitythanthatofthePTVfilmpreparedbythetraditionalprecursormethod,whichisveryimportantforfabricatingdeviceswithgoodproperties.

简介：Polyolefinsthatbearachiralsidechain(typicallyanisobutylgroup)experienceaso-calledmacromolecularamplificationofchirality:thechiralside-chaininducesaslightpreferenceforeithertgortg-mainchainconformation.Thisslightconformationalbiasisamplifiedcooperativelyalongthechain,andresultsinpreferredchiralityofthemainchainhelicalconformations.Asaresult,thesepolymersdisplayaliquid-crystal(LC)phasebothinsolutionand,inthemeltasatransientphaseonthewaytocrystallization.Theexistenceoftwoprocesses(melt-LCandLC-crystaltransitions)resultsinunconventionalbehaviorsthatwerefirstanalyzedbyPinoandcollaboratorsbackin1975.Thesepolymersalsoofferameanstotestthestructuralconsequencesofrecentlyintroducedcrystallizationschemes.Theseschemespostulatetheformationofatransientliquid-crystalphaseasageneralschemeforpolymercrystallization.

简介：Fourkindsofpalladiumcatalystsdispersedonpoly-N-vinyl-2-pyrrolidonewerepreparedbyusingCH3OH-NaOH,NaBH4,H2OorCH3OH-H2Oasthereducingagentintheprocessofcatalystpreparation.ThecatalystswerecharacterizedbyXPS,TEM,XRDandusedforthehydrogenationofmethylacrylate.Itwasfoundthatthevalencestateofpalladiumanddistributionofpalladiumparticlesaswellasthehydrogenationrateweregreatlyaffectedbythereducingagent.ThebestevenlydispersedpalladiumcatalystshowinghighhydrogenationactivitywaspreparedusingCH3OH-NaOHasthereducingagent.

简介：DistributionofmetalsonPd-SnO2/D3520catalystsandstateofthecatalystswrerstudiedwithSEM,XRD.TheinteractionbetweenmetalsandsupportorbetweenPdandSnorPbwerestudiedbyIR,XPS.Inaddition,therelationshipoftheactivityforcatalytichydrogenationoftheolefinsandouterlayervalenceelectrondensityofPdwasdiscussed.Theresultsshowedthatthesecatalystshadsuitablesurfacestate,themetalswereuniformlydispersedonthesurfacelayerofthesupport.Therewerenotobviousinteractionbetweenthemetalsandthesupport.TherewasstronginteractionbetweenPdandSn(orPb)inthecatalysts.ThecatalyticactivityforhydrogenationwasrelatedtoouterlayervalenceelectrondensityofPd.

简介：DistributionofmetalsonPd-SnO2/D3520catalystsandstateofthecatalystswerestudiedwithSEM,XRD.TheinteractionbetweenmetalsandsupportorbetweenPdandSnorPbwerestudiedbyIR,XPS.Inaddition,therelationshipoftheactivityforcatalytichydrogenationoftheolefinsandouterlayervalenceelectrondensityofPdwasdiscussed.Theresultsshowedthatthesecatalystshadsuitablesurfacestate,themetalswereuniformlydispersedonthesurfacelayerofthesupport.Therewerenotobviousinteractionbetweenthemetalsandthesupport.TherewasstronginteractionbetweenPdandSn(orPb)inthecatalysts.ThecatalyticactivityforhydrogenationwasrelatedtoouterlayervalenceelectrondensityofPd.

简介：Polyfluoroalkylsubstituted2-hydroxyethylacrylate6wassynthesizedinsixstepsusingglycerolasastartingmaterial.Apreliminaryinvestigationhasbeentakenonthesynthesisandcharacterizationofcopolymersof6and2-hydroxyethylmethacrylate.

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简介：Dithia-monoaza18-Crown-6anditsimmobilizationproduct,silica-bound1,7-dithia-4-aza-10,13,16-trioxa-cyclooctadecaneviaaspacerofthreecarbonatoms,anditsplatinumcomplexhavebeensynthesized.Itisfoundthattheplatinumcomplexisanefficienthydrosilylationcatalystforolefins.TheXPSdataoftheplatinumcomplexarereported.

简介：包含1,3,4-oxadiazole单位的热地稳定的聚合物作为溶剂在pyridine与芳香/脂肪族的二度酸氯化物通过芳香/脂肪族的bis-tetrazole混合物的Huisgen反应被综合了。获得的聚合物甚至在象DMSO和DMF那样的极的aprotic溶剂不可溶解或稍微可溶。相对高的固有的粘性价值(0.611.33dL/g，在在25点的0.125%H2SO4????????????????????????倠？？

简介：Acylationreactionofanthracenewithoxalylchlorideinthepresenceof[Emim]C1-A1C13ionicliquidhasbeeninvestigated.Pure1,2-aceanthryenedione,whichisusedasintermediateoffunctionalaromaticpolymermaterial,wasobtainedbyrecrystallingthereactionmixturewithaetherandwasdeterminedbyGC/MS,1HNMRandFTIRanalysis.Theinfluencesofvariousparameters,suchasthecontentsofAlCl3in[Emim]C1-A1C13,theamountofacylationagent,amountof[Emim]C1-A1C13,reactiontemperatureandreactiontimewereinvestigated.Theoptimumconditionswereasfollows:themolarfractionofA1C13inionicliquid[x(AlCl3)]being0.67,molarratioofionicliquidtoanthracenebeing2:1,molarratioofoxalylchloridetoanthracenebeing2:1,reactiontemperaturebeing40℃andreactiontimebeing6h.Underaboveconditions,theyieldandselectivityof1,2-aceanthrylenedionecanreach91.5%and98.3%respectively.Furthermore,[Emim]C1-A1C13ionicliquid,comparedwithmetalhalidessuchasAlCl3,wasfoundtocatalyzethereactionasanovelenvironmentalfriendlycatalystandsolventandcanbereused.