中空微球合成及应用.ppt

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1、中空微球合成及应用1.背景聚合物壳层应用性能物质气体水挥发性溶剂功能性化合物纳米级尺寸基质材料的小孔物质的包覆及缓释作用应用性能适宜人体发质环境香精亲水性外层2.合成示例中空微球的制备示意图：乳液聚合反应式：MMADMCHDDATEM-复合包覆物微球的1.FacileFabricationofHollowPolymerMicrospheresthroughthePhase-InversionMethodTheCPP/poly(MMA-BA-AA)graftcopolymerwassynthesizedbythefree-radicalpolymeriz

2、ationofMMA,BA,andAAinthepresenceofCPPinbutanoneusingAIBNastheinitiator2.FabricationofMonodispersetemperature-responsiveorpH-sensitivehollowpolymermicrospheresTemperature-responsivehollowpoly(N-isopropylacrylamide)(PNIPAAm)microsphereswerepreparedbyatwo-stagedistillationprecipitat

3、ionpolymerizationtoaffordacore–shellmicrosphereswithsubsequentremovalofpoly(methacrylicacid)(PMAA)core.ThepH-sensitivehollowP(MBAAm-co-MAA)microsphereswerepreparedbyatwo-stagedistillationprecipitationpolymerizationtoaffordacore–shellPMAA/(P(MBAAm-co-MAA)microspherewithsubsequent

4、removalofPMAAcore.3.FacileandScalableSynthesisofMonodispersedSphericalCapsuleswithaMesoporousShellPolystyrenelatexwithasizewasaddeddropwisetoasolutioncontainingwater,CTAB,ethanolandammoniumhydroxideundervigorousstirringatroomtemperature.Themixturewasfirstsonicatedfor10minandthenm

5、agneticallystirredfor30minbeforeaddingdropwiseTEOS.Advantage:TheweakbasicityandappropriateratioofethanoltowaterallowprecisecontroloftherateofhydrolysisTEOS,whichtogetherwiththehighlatexconcentrationreducesthepossibilityofformingsolidmesoporousparticlesaswellasfusingthemtogether参考

6、文献：1.FacileFabricationofHollowPolymerMicrospheresthroughthePhase-InversionMethod2.Monodispersetemperature-responsivehollowpolymermicrospheresSynthesis,characterizationandbiologicalapplication3.SynthesisofpH-sensitivehollowpolymermicrospheresandtheirapplicationasdrugcarriers4.Faci

7、leandScalableSynthesisofMonodispersedSphericalCapsuleswithaMesoporousShellThankyou