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共轭聚合物水凝胶的制备与应用进展.docx

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共轭聚合物水凝胶的制备与应用进展 Title:AdvancesinthePreparationandApplicationsofConjugatedPolymerHydrogels Abstract: Inrecentyears,conjugatedpolymerhydrogelshavereceivedincreasingattentionduetotheiruniquepropertiesandpotentialapplicationsinvariousfields.Thispaperprovidesanoverviewoftherecentprogressinthepreparationmethodsandapplicationsofconjugatedpolymerhydrogels.Thesynthesisstrategiesforconjugatedpolymerhydrogels,suchasself-assembly,chemicalcross-linking,andphysicalgelation,arediscussed.Furthermore,thediverseapplicationsofthesehydrogelsinfieldssuchasbioimaging,drugdelivery,sensing,andenergystorageareexplored.Thisreviewaimstoprovideacomprehensiveunderstandingofthecurrentstatusandfutureprospectsinthefieldofconjugatedpolymerhydrogels. 1.Introduction: Conjugatedpolymerhydrogels,aclassofhydrogelsformedbytheself-assemblyorcrosslinkingofconjugatedpolymers,haveattractedconsiderableinterestduetotheiruniqueproperties,includinghighwatercontent,goodmechanicalstrength,andexcellentphotophysicalandelectricalproperties.Thesehydrogelsholdtremendouspotentialforapplicationsinvariousfields,includingbiomedicine,bioelectronics,andenergystorage. 2.PreparationMethods: 2.1Self-Assembly: Conjugatedpolymerscanundergoself-assemblyinaqueoussolutionsdrivenbynoncovalentinteractions,suchasπ-πstackingandhydrophobicinteractions.Differentassemblymethods,suchassolventevaporation,solventdiffusion,andelectrostaticinteractions,canbeemployedtoobtainstablehydrogelswithcontrollablestructuresandproperties. 2.2ChemicalCross-Linking: Chemicalcross-linkinginvolvesthecovalentbondingbetweenconjugatedpolymersorthepolymersandcross-linkingagents.Thismethodoffersimprovedmechanicalstabilityandcontroloverthehydrogelproperties.Variouscross-linkingchemistries,includingclickchemistry,Schiffbasereaction,andDiels-Alderreaction,havebeenutilizedinthepreparationofconjugatedpolymerhydrogels. 2.3PhysicalGelation: Physicalgelationreliesonthephysicalinteractions,suchashydrogenbonding,electrostaticinteractions,andphysicalentanglements,toformhydr