简介：Thesolid-phasesynthesisofisoxazolineson2-polystyrylsulfonamidoethanolresinisreported.2-Polystyrylsuifonamidoethanolresin1wasreactedwithacryloylchloridetoafford2-polystyrylsulfonylamidoethylacrylateresin2,whichwasfurtherreactedwithbrominatedaldoximesby[3+2]cycioadditiontogiveisoxazolineresin4.Resin4wastreatedwithaqueous6mol/LHCIsolutiontoobtainisoxazolinesingoodyieldandpurity.

简介：Inthispaper,effectsonofsixtypeofresinsthedecolorizationofD-ribosezymoticfluidhavebeenstudiedforthefirsttime.TheresultsshowthatresinNKA-IIhasthebesteffect.thedecolorizationrageofD-ribosezymoticfluidis91%atvelocityof1.0BV/hrand25℃,theadsorptioncapacitycanreachupto5.7BV.Theeffectsofadsorptionconditionsaswellasconditionsofresinregenerationontheresindecolorizationcapabilitywerealsostudied.

简介：AuseofSulfonateesterasalinkerinsynthesisofω-aminoalkanolswasreported.Diolsweretetheredontopolystyrylsulfonylchlorideresin,yieldingsulfonateresins(2).Aftercleavedbydiethylamine,diisopropylamineandpropylaminerespectively,threeω-aminoalkanolswereobtained.

简介：ThesolidstateC13-NMRspectraofdifferentACFsfromvariousprecursorfiberswererecordedinthispaper,TheeffectsofactivationconditionsonchemicalstructuresofACFs,aswellasthechangesofchemicalstructuresduringcarbonizationandredoxreactionwereinverstigatedbyNMRtechnique,Atsametime,thesoildstateP31-NMRspectraofACFSarestudied.TheC13-NMRspectraofACFscanbedividedintosixbandsthatareassignedtomethylandmethylenegroups,hydroxylandethergroups.acetal(ormethylenedioxy)carbon,graphite-likearomaticcarbonstructure,phenol,andquinonegroups,respectively.OnlyphosphorouspentoxideexistsonACFsandCFs.Moreover,mostofthemarestuckoverthecrystalfacebutnotattheedgeofgraphite-likemicro-crystal.ThecarbonizationandactivationconditionsaffecttheC13-NMRspectraofACFs.TheexperimentalrsultsindicatethattheredoxreactionofACFswithoxidantsgreatlyconsumesC-Hgroup.

简介：

简介：Inthisarticle,AHPS(3-allyloxy-2-hydroxy-1-propanesulfonatesalt)wassynthesizedtouseinemulsifier-freeemulsionpolymerizationofBA/BMA/MMAsystemforhighsolidcontentlatexes.Storagestability,flowbehaviorofthelatexes,morphologyoftheobtainedlatexparticles,dynamicviscoelasticbehavior,tensilestrengthandwaterresistancepropertiesoftheresultedcopolymerswereinvestigated.TheexperimentalresultsshowthatwiththeadditionofAHPS,stabilityoftheemulsionisgreatlyimprovedthatthereappearsnoapparentprecipitationduringthepolymerizationandstorageatroomtemperaturefor6monthsandat-10℃forfourmonths.FlowofthelatexesfollowstheBinghambodylaws,diameterofthelatexparticlesisabout0.6μm,ofwhichislargerthanthatofbyconventionalemulsionpolymerization(0.12μm).Inaddition,notonlywaterresistanceofthecopolymersobtainedbyemulsifier-freeemulstionpolymerizationisgreatlyimproved,butalsotensilestrengthisobviouslyenhanced.

简介：Thisreviewdealswiththepreparationandapplicationofpolymericsulfinateresinsasreactiveintermediateinsolidphaseorganicsynthesisandseparation.

简介：ToraisetheroomtemperatureionicconductivityandimprovethemechanicalstrengthofaPEO-basedpolymerelectrolyte,anoncrystallinetwo-componentepoxyelectrolytesystemhasbeenprepared.Thediglycidyletherofpolyethyleneglycolsasprecursorsofthesystemweresynthesizedbyatwo-stepprocess.Thepresumedstructureoftheproductwascharacterized,by13C,1HNMRandIRspectroscopy.Itwasfoundthataside-reactionoccurredbetweenthesecondaryhydroxylgroupofPEG-chlorohydrinandepichlorohydrininsomedegree,resultinginaby-productcontaining—CH2Clsidegroup.Byselectingacharacteristicsignal,whichisundistortedbytheincreaseinthelengthofCH2CH2—Osegment,a1HNMRapproachofdeterminingtheequivalentepoxyweight（EEW）wasproposed.ThemethodisvalidtospecimenseventhoughtheEEWisashighas2,000.TheexaminationofthespecimensbyDSCshowedthatepoxidationgreatlydepressedthecrystallinityofthePEG’s,whereastheTgwasraised.

简介：Theflowinjectionanalysiswasfirstlyusedforstudyingasolid-liquidadsorptionsystem,andthedynamicsprocessintheadsorptionofdyestuffwithregenerablechitinwastracedbyanonlinemethodofflowinjection-spectrophotometry.Experimentalresultsindicatethatthereisalinearizationbetweenthetestedsignalsandtheheightofpeakswithreciprocitycoefficient0.9999byusingtheflowinjection-spectrophotometrysystemtostudythedynamicsadsorptionprocessinsolid-liquidsystem.Themethodshowsagoodstabilityandreproducibility.Itprovidesanewmethodforthestudiesonadsorptiondynamicsinsolid-liquidsystem.

简介：Theparameteridentificationmodelisproposedfordeterminingthelinearadsorptionisothermsandthesoliddiffusioncoefficientsbyusingadsorptionchromatorgaphy.Axialdispersioncoefficientsisfirstlydeterminedbypulse-respondexperimenttechniquewithaninertsubstanceastracer,thentheelutioncurvesofchromatographyseparatingtheisomermannitolandsorbitolaredeterminedbythechromatographicmeasuringtechnique,andpinallytheadsorptionisothermsandthesoliddiffusioncoefficientsofmannitolandsorbitolonCa^2+resinsareestimatedbyusingthismodel.Theresultsshowthattheaxialdispersioncoefficientsincreasewithfluidvelocityincreasing,Theadsorptionequilibriumconstantsdecreasewithtemperaturerising;andthesoliddiffusioncoefficientsincreasewithtemperaturerising.Thetheoreticalelutioncurvesaregoodagreementwiththeexperimentalelutioncurvesoftheliquidadsorptionchromatographyseparatingthemannitolandthesorbitol.Themodelprovidesasimpleandreliableproceduretoestimatethekineticandthermodynamicparmetersoftheadsorption.

简介：Polyether-polyurethanezwitterionomersbasedon4,4’-diphenylmethanediisocyanate(MDI),methyldiethanolamine(MDEA),andpolytetramethyleneoxideglycol(PTMO)werestudiedwithvariable-temperaturewide-line~1HNMR.Itisfoundthatuponionization,degreeofphaseseparationinthepolymersystemdecreasedatfirstduetothelossofhardsegmentregularity,whilefurtherionizationincreasedthedegreeofphaseseparationthroughincreasinghardphasecohesionanddifferenceofpolaritybetweenhardandsoftsegments.

简介：poly包括的合成聚合物电解质(用户终端设备)(vinilydenefluoride-hexafluoro丙烯)，PVDF-co-HFP和锌triflate，Zn(CF3有改变ZrO2nanofillers的集中的3)2被与N扔技术的答案因此准备，N-dimethylformamide(DMF)作为普通溶剂。有特别作文的聚合物电解质标本75wt%PVDF-co-HFP：7wt%ZrO2显示出的25wt%ZnTf+4.6的最高的传导性??????????????€潰祬???????畃????猯灵？？