樹枝狀大分子聚酰胺胺的合成與性能研究

1、大連理工大學博士學位論文樹枝狀大分子聚酰胺胺的合成與性能研究姓名：王俊申請學位級別：博士專業(yè)：應用化學指導教師：楊錦宗20051201大連理T大學博士學位論文AbstractDendrimerisanewtypeoffunctionalmaeromoleculecompoundwhosespecialtiesaretodesignthemolecularsize，shapeandfunctionalgroupattimmolecular

2、levelAscomparedwiththetraditionalTnacromoleculaLtheyallconsistofthesamestructuralunits，butitshowstobeverydifferentinproperciesNowresearchesintothepropertiesofthiskindofmacromolecularhasn’tbeentoodeepgoing，butabreakthroug

3、hresearchprogresshasbeenmadeinsonicapplyingfield，suchasdrugdelivercatalystcarriergenetherapy，sensoretcAgreatnumberofresearchthesisesaboutthistopichavebeenpublishedontheabroadhighlevelacademicmagazineannuallyAccordingtoth

4、especialtiesofdendrimerstructureitselfitisaverypromisingresearchorientationtocarryontheresearchintomolecularstructureandpropertiessystematicallyanddevotingourselvestosolvingthepracticalprobleminthetraditionalfieldsInthis

5、papertwotypesofpolyamidoamine(PAMAM)havebeensynthesizedbydivergentwithethylenediamineandammoniaascorerespectivelyThemolecularstructuresoftheproducthavebeencharacterizedbymeansinfraredspectrum(1R)，nuclearmagneticresonance

6、(NMR)andterminalgroupanalysisTheresultdemonstratedthatthestructuresofthesynthesizeddendrimersaccordwiththeoreticalstructuresTheresearchmethodofsurfactantisadoptedtostudythephysicalquantitiesofthenewtypemacromolecularaque

7、oussolution，suchasintrinsicviscositysurfacetension，surfaceadsorbance，criticalmicelleconcentration(CMC)，HLBvalueandmoleculardimensionThefactindicatedthattheintrinsicviscosityisrelatedtothemolecularstructure，thesurfaceacti

8、vityisrelatedtotheterminalgroupconstruction，theHLBvalueisrelatedtotheextentofgenerationMoreoverthemolecularsizeisprovedtothegradeofnanometerbytheadsorptionexperimentofsurfactantThepublicreportsaboutsomesurfacepropertyofp

9、olyamidoaminehaven’tbeenpublishedatpresent’fhepropertiesofthiskindofnewtypemacromolecularsurfactantascrudeoildemulsifierhavebeeninvestigatedemphaticallyAtthesametimewehaveinvestigatedthebasicpropertiesofPAMAMThedemulsify

10、ingcapabilityofPAMAMforthesimulatedO／WemulsionofdifferentsystemwasevaluatedTheresultshowsthatalthoughithaslittlesurfaceactivity，thedifferentcoresandgenerationofPAMAM，whoseterminalgroupisamidogen，behaveswelldemulsiflcatio

11、nThedemulsificationofPAMAMfortheO／Wemulsioniscloselyconnectedwiththemolecularcore，terminalgroupandgenerationwhichprovidedthefoundationtodesignthenewtypedemulsifiermoleculeThemechanismofPAMAMastheO／Wdenaulsifierforcrudeoi

12、lwasstudiedbywayofmeasuringtheadsorptionmembraneintensionandrupturerateofliquidmembrane，whichestablishedabaseofexploitingaseriesofdemulsifierwithnew—stylechemicalstructureThepublicreportsabouttheseresearcheshaven’tpublis