多组分星形和类树枝状聚合物的合成与表征的中期报告.docx

多组分星形和类树枝状聚合物的合成与表征的中期报告
摘要：
星形和类树枝状聚合物因其特殊的结构和卓越的性能而受到广泛关注。根据不同的合成方法和单体种类，它们可以具有不同的拓扑结构和功能。本文总结了近年来关于星形和类树枝状聚合物的合成、表征和应用方面的研究进展，包括自由基聚合、离子聚合、环状聚合、交叉交联等合成方法，以及二维和三维结构、催化、光学、电学、磁学等性质的表征。此外，还介绍了星形和类树枝状聚合物在药物传递、生物成像、纳米材料制备、催化反应等领域的应用研究。
关键词：星形聚合物；类树枝状聚合物；合成；表征；应用
Introduction
Star-shapedanddendrimer-likepolymershavereceivedwideattentionduetotheiruniquestructuresandexcellentproperties.Theycanhavedifferenttopologicalstructuresandfunctionsbasedondifferentsynthesismethodsandmonomertypes.Inrecentyears,significantprogresshasbeenmadeinthesynthesis,characterization,andapplicationofstar-shapedanddendrimer-likepolymers.Inthisreview,wesummarizetherecentresearchprogressonthesynthesis,characterization,andapplicationofthesepolymers,includingfreeradicalpolymerization,ionpolymerization,ringpolymerization,cross-linking,etc.Wealsointroducethecharacterizationoftwo-dimensionalandthree-dimensionalstructures,catalysis,optics,electricity,magnetismandtheapplicationofthesepolymersindrugdelivery,biomedicalimaging,nanomaterialpreparation,catalyticreactions,etc.
SynthesisofStar-shapedandDendrimer-likePolymers
Star-shapedpolymersaresynthesizedbythecore-firstorarm-firstmethod.Thecore-firstmethodinvolvesthepolymerizationofmonomersaroundacoremolecule,whilethearm-firstmethodinvolvesthegrowthofpolymerchainsfromafunctionalinitiator.Thearm-firstmethodhasadvantagesofmonomerconversionandmolecularweightcontrol;thecore-firstapproachismoresuitableforpreparingmultifunctionalstar-shapedpolymers.Dendrimer-likepolymerscanbesynthesizedusingavarietyofmethods,suchashyperbranchedpolymerization,grafting-fromorontomethodandcombinationofdifferentmethods.
CharacterizationofStar-shapedandDendrimer-likePolymers
Thecharacterizationofthestar-shapedanddendrimer-likepolymersincludesthedeterminationoftheirstructures,molecularweights,anddistributions,aswellastheirtwo-dimensionalandthree-dimensionalstructures,catalysis,optics,electricity,magnetism,andotherproperties.
ApplicationofStar-shapedandDendrimer-likePolymers
Star-shapedan