無機(jī)-有機(jī)復(fù)合膜的制備及光致變色性能研究.pdf

1、大連海事大學(xué)碩士學(xué)位論文無機(jī)有機(jī)復(fù)合膜的制備及光致變色性能研究姓名：倪麗麗申請學(xué)位級別：碩士專業(yè)：環(huán)境科學(xué)與工程指導(dǎo)教師：馮威20090601英文摘要ABSTRACTPhotochromiccompositematerialswithgoodlightsensitivityandextensiveapplicationsarebeingpaidmoreandmoreattentionsPolyoxometalatesbecomeprom

2、isingcandidatesbecauseoftheirintriguingcapabilityforreversiblemultivalencereductionformingmixedvalencespecies，whichmakesthemsuitableforphotochromicandelectrochromicmaterialsInordertealizepracticalapplicationinthetechlolo

3、西calfields，theconsiderableattentionhasbeenfocusedonthestudyofpolyoxometalatesnanoparticlesdispersedintopolymericnetworkstoobtaintransparentnanocompositesthinfilmsInthispapertwocrosslinkedpolymerswerepreparedbasedonNvinyl

4、pyrrolidoneandN’Nmethylenebisacrylamide，Nvinylpyrrolidone(vv)andbisvinylA(aVA)respectivelyAndtheywereused弱pdymermatrixtoconstructnovelphotochromicnanocompositethinfilms、聃mentrappingtheKeggintypepolyoxometalatesAlso，aphot

5、ochromicnanocompositethinfilmWaspreparedbasedonpolyacrylarnide(PAM)andKeggintypemolybdenurnphsophoricacid(PMoA)AllthefilmsshowedgoodstructureandphotochromiccharacterThemainresultsareoutlinedasfollowing：Acrosslinkedpolyme

6、r(P(VPMB))waspreparedbasedonNvinylpyrrolidoneandN，Nmethylenebisacrylamide，theKegginstructureheteropolyacid0OM)m仁W，Mo)isintroducedintotheP(VPMB)polymernetworkUnderultravioletlightthecompositefdmchangefromcolorlessintotheb

7、lue，heteropolyacidhasbeendeoxidizedtoheteropolybulesThewholereductionisinaccordancewinlthemechanismofthechargetransferThebleachingprocessofthecompositefilmst00kplaceinairComparedwithPWA／P(VPMB)film，PMoA／P(VPMB)filmshowed

8、quickerresponseunderUVandlowerblearningprocessAerosslinkedpolymerP(VP—BVA)waspreparedbasedonNvinylpyrrolidoneandbi趼inylA(BVA)，theKegginstructureheteropolyacid(POM)(M=WMo)isintroducedintotheP(VPBVA)polymernetworkUnderultr