交聯(lián)聚膦腈微納米材料的研究.pdf

1、上海交通大學(xué)碩士學(xué)位論文交聯(lián)聚膦腈微納米材料的研究姓名：朱龑申請學(xué)位級別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：唐小真20090101上海交通大學(xué)碩士論文第IV頁ABSTRACTThefmationmechanismofthecrosslinkedphosphazenecontainingnanofiberswasresearchedinthisthesis.Multimphologycontrolbetweenmonodispersemircos

2、pheresunifmnanofiberswassuccessfullyachievedbyfacileapproachadjustingtheratioofsolventcomposition.Wealsogetthenovelfunctionalcrosslinkedmicrosphereswithactivehydroxylgroupsviaonestepprecipitationpolymerizationbypolyconde

3、nsation.ThesecrosslinkedphosphazenecontainingnanoscalematerialsweremixedintoPVAanovelcontrolleddrugdeliverysystemwasfmed.Basedonthesinglefactresearchonthenanofiberspreparationfocusedontemperaturepoweroftheultrasonicbathc

4、oncentrationofmonomerconcentrationoftriethylaminetheacidacceptthesolventwegettheinitialassumptionaboutthenanofibersfmationmechanism.Theiginalparticleswerefmedunderspecialmoleculeweightcrosslinkingdegree.Thentheseparticle

5、swerearrangedinspecialdirectionwiththechlidebond.ThecrystalofTEAHClalsoplayedanimptantroleinthisprocess.Afterthestructureofnanofiberswasfmedtheygrewupbyabsbingtheoligmers.Monodispersecyclotriphosphazenecontainingmicrosph

6、ereswithactivehydroxylgroupswerepreparedviaasimpleeconomicenvironmentallyfriendlyrouteonestepprecipitationpolymerization.Theresultingpolymerparticleshadsphericalshapessmoothsurfaceswithnarrowparticledispersal.FromtheFTIR

7、spectratheresultofelementalanalysisitwasobviousthatthecontentofthehydroxylgroupsonthesurfacewasdependeduponthefeedratio.Thesuccessfulesterificationwithbenzoxychlidedemonstratedthehighactiveofthehydroxylgroupsonthemicrosp