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《側(cè)鏈含胺基的水溶性與兩親性陽離子聚電解質(zhì)的合成及性質(zhì)研究》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、山東大學(xué)博十學(xué)位論文saltandstyrene(PVBAHSn-b-PSm)weresynthesized．Westudiedfourspecifichomologousseries(blockl，2，3，4)慚thm=64，99，132，525respectivelyandn=59．Bymeasuringthe乃4isothermsforliquidexpandedmonolayersformedatair／waterinterface,differencesofthecopolymersinmolecularareawereofobviousrelevance,wherethe
2、largestPSblockoccupiedthelargestinterfacialmolarareathantheothersmallerones．Atthesametime,thisorderlinesswasinvalidforblock1t02．Apossibleexplanationforthisnon-trivialresultWasthatthehydrophilie／hydrophobicbalancefortheseeopolymers、)I，imlowerPSfractionsshiftedtowardsthehydrophilicity．Effectofbov
3、ineserumalbumin(BSA)dissolvedinthesubphaseWasalsodiscussed．SignificantchangesoffilmswereobservedformedbycopolymersandBSA：withlittlecontentsofBSAin吼玎f鈿ce'newamphiphilicmoleculeWasformedwithmulti-hydrophobicchainsandlargevolumebetweenPVBAHS—b-PSandBSAbasedonmanytoonebyelectrostaticinteraction．The
4、compressibilityandstabilityofthefilmincreasedrapidly．Duringthecompressionprocess,theresulting州isothermexisted竹theliquid—expandedstate一，¨theliquid-condensedstate—and”theintermediatestate"inturn．Wi也thehighercontentsofBSAinsurface，newamphiphilicmoleculeWasformedbetweenPVBAHS·b-PSandBSAbasedononeto
5、onebydec'trostaficinteraction．MixedfilmWasformedbythenewamphiphilicmoleculesandthesuperfluousBSAmolecules．Thecurvesdemonstratedsmoothmlt'fac圮pressureincreaseandthera#ddecreaseofcollapsepressure(㈦，illustratingtherearrangementandevenextrusionoftheunassociatedBSAmoleculesinthefilm．Thepresenceofmuc
6、hmoreBSAmoleculesinthesubphaseWasnotfavorabletotheformationofcompactac宅mnulatingcompressingfilm．ThedifferentaggregatedstructuresoftheblockcopolymerPVBAHS5小PSmcontainingpendantaminogroupsin1rI{F／H20(v／v=3)wereformed麗mpHchangesduetoelectrostaticinteractioninPVBAHSsegmentswithdifferentprotonizatio
7、ndegrees．Observedbydynamiclightscattering,thethreeblockcopolymcrs,PVBAHS59一知PS騙PVBAHS59-b-PSl32，andPVBAHS59-b-PS525formedcore-shellmicellesinDMSO／THF(w／w=3／2)binarysolventmixture,withPSincorollaandPVBAHSincore．Thecoreofmicelleform
