Pickering乳液研究和Cu-,2-O粒子形貌控制合成.pdf

1、中國科學(xué)技術(shù)大學(xué)碩士學(xué)位論文Pickering乳液研究和CuO粒子形貌控制合成姓名：苗偉峰申請學(xué)位級別：碩士專業(yè)：高分子化學(xué)與物理指導(dǎo)教師：劉華蓉20080501摘要ABSTRACTWiththedeVelopmentofnano—technology，moreattentionshavebeenfbcusedontheadsorptionofnanoparticlesato訂／waterinterfIaceandtheemuIsion

2、sstabiIizedbysuchparticjes(alsocalledPickeringemuIsions)Thepreviousworkmainlyconcemedtheef托ctofparticlewettability(o＆enexpressed￡hethreephasecontaccanglepoftheparticIes)ontheinterfacialadsorptionandPickeringemulsionsHowe

3、Ver，latexparticIesstablizedPickeringemulsionshasnotbeensystematicallystudiedInthisthesis，wesyInthesizefatexnanoparrticleswithhydrophiliccoreandhydrophobicshellViareversemicroemulsionpolymerizationThewaterphasecontainsacr

4、ylic，acrylamideandcrossIinkerN，N’一methylenebisacryIamide，theoiIphasecontainsmacromonomerstearyImeth∞r(nóng)yIateWhenacrylic，acrylamideandcrossIinkercopolymerizeinthewaterphase，theyalsopolymerizewjthmacromonomeratthewateroilint

5、erfllce，resultingintheforma[tionofamphiphiliccore／shellandpH—responsiVelatexnanoparticlesBychangingtheratioofhydroph川cmonomerstohydrophobicmonomer，aseriesofdif絕rentamphiphiIiclatexaresynthesizedIt’sfoundthatwhentheratioo

6、fhydrophobic／hydm|philicmonomersistoo1a唱eortoosmall，Iatexparticlescan’tseloassembJeattheoil‘Ⅵ腳erinterfaceVerywellduetostronggerhydrophobicityorhydrophilicityHoweVer，morestableO／Wemulsioncanbepreparediftheemulsionisalkali

7、ne，wh；chdenlonstratesthatthelatexispH—responsiveIftheratioofhydrophobic／hydrophilicmonomersisequaJstol，Ve9stableO／WemuJsioncanbepreparedandthusproducedPStSpheresevenWealsos￡udyshape—controlleds”theSisofCu20particles誡7gar

8、nma—iffadia￡ionBythecharacterizationofpowderX—raydif。仟action(XRD)andscanningeJec缸o(hù)nmicroscopy(SEM)andtransmjssjoneJectronmjcroscopy(TEM)，itisfoundthatreactiontemperatureandcetyltrimethylammoniumbromide(CTAB)asacappingma￡

9、e—aJortempJateaf殆ctthefom】a“onrateoftheCu20nucJeafjonandcry5taJgro似hratesIntheabsenceofCTAB，whenthereactiontemperatureislow(5。C)，concaVecubjcCu20canbeobtained；whenthereactjontemperature；shj曲er(25。C)，ei曲tpodcubesareobsefV