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1、Free-StandingNanomaterialsfromBlockCopolymerSelf-Assemblyllye88化學(xué)所MainReferenceOutlineIntroductionExperimentalPartResultsandDiscussionConclusionsInnovationsandProblemsReferences1.IntroductionAmphiphilicblockcopolymers(BCs)couldcontrolmaterialinterfaces.The
2、3DconstructionisdirectedbytheassemblyofBCsmicellespreparedinsituduringthespin-coatingoftheblockcopolymersolution.BCsinselectivesolventleadtothepreparationofcore-shellmicelleswithadenseinsolublecoreandadiffuseshellpartiallyswollenbythesolventadenseinsoluble
3、core內(nèi)核micellesadiffusecorona核冠Inthiswork,thepreparationofstablenanostructureassembliesinonestepfromhomogeneoussolutionsofABAtriblockcopolymers.Thesuccessofthisstrategyisessentiallyduetothedesignofverystablemicellespreparedandself-assembledinsituinfewsecond
4、sbysolventevaporationSelf-AssemblyNanomaterialsTheglassyPSANblockswillenabletheformationofcompactaggregatesconstrainingthemicellestobekineticallyfrozenatroomtemperaturewhereastheflexiblePEOblockwillenablethedynamictransitionsbetweenloopedandbridgedchaincon
5、formations.loopedbridgedPhotonCrossCorrelationSpectroscopyPhotonCrossCorrelationSpectroscopy(PCCS),光子交叉相關(guān)光譜法PCCS已用于納米顆粒粒徑測量,其技術(shù)日益成熟并成為納米顆粒粒徑測量的有效方法。其測量原理是建立在顆粒的布朗運(yùn)動(dòng)之上。隨著顆粒的布朗運(yùn)動(dòng),散射光強(qiáng)圍繞某一平均值不斷起伏漲落。PCCS可以直接測試高濃度試樣而不需要稀釋。測量結(jié)果完全真實(shí)的反映了被測試樣品的實(shí)際粒度及分布狀態(tài)PCCS測定的參數(shù)為:平
6、均粒徑和多分散指數(shù)吳立敏,王曉艷.納米、亞微米顆粒粒度的測量——光子相關(guān)光譜法,《上海計(jì)量測試》,2003年30卷3期2.ExperimentalPartSythesisoftheTriblockCopolymera.EsterificationPEO+AcryloyolChloride(丙烯酰氯)PEO-acrylate(I)b.IntermolecularRadicalAdditionI+MAMA-SGIalkoxyaminemacroalkoxyamine-basedPEO(II)c.Preparat
7、ionofTriblockCopolymerII+Styrene+ArylonitrileP(St317-co-AN262)-b-PEO795-b-P(St-co-AN)PreparationofPolymerFilmsa.DissolvingtheTriblockCopolymerinaDMF/toluenemixtureb.Spin-coatingthehomogeneoussolutionontoaSiwaferevaporatesolventSyntheticProducure3.Resultsan
8、dDiscussionSythesisoftheTriblockCopolymerPrecursorPreparationofParticleNanomaterialPreparationof“SpiderWeb”Nanomterial3.1PreparationofParticleNanomaterialThepreparationofsuperstructurehomogeneoussolution:PSAN