1、西安科技大學碩士學位論文烷氧基取代PPV衍生物的合成研究姓名：劉振申請學位級別：碩士專業(yè)：材料學指導教師：楊建業(yè)20090515Subject：TheResearchonSynthesisofAlkoxy—substitutedPPVandItsDerivativesSpecialty：MaterialscienceName：LiuZhenInstructor：YangJianye(signature)叢巫(Signature)ABST

2、RACTPolyphenylvinylene(PPV)anditsderivatiyesisoneofthemostextensiveresearchinphotoelectricpolymersrecentlyItcarlbethemostpromisingconductivepolymerwhichisusedforthenextgenerationsolarcellmaterials，becauseoftheireasilyman

3、ufacturingandgoodsemiconductorpropertieslikeinorganicmaterialsHoweveritcannotbemassusedbecausetherearemanydisadvantagesinpurePPV，suchastoohighbandgap，poormatching、析mthesolarspectrumandtoodifficultsolubilitytobecomelarges

4、caledfilmTheseperformancesCanbeimprovedthroughthemainpolymerchaincopolymerization，polymersidechainmodificationandpolymer／inorganicnanocompositesThisthesissummarizedresearchstatusofthepolymersolarcellsmaterials，particular

5、lydetailedinthesynthesis，modificationandapplicationofPPVAlsoitputforwardstotheexistingproblemsandprospecteditsapplicationinthefutureInthispaperonthebasisofpreviousstudies，wesynthesizedfivedifferentalkoxysubstitutedPPVder

6、ivativesbYthemethodofdehalogenatingcondensationreaction，throughmoleculardesignmethodsThosePPVderivativesincludepoly(2methoxy5一butoxy)phenyleneVinylene，poly(2一methoxy5pentyloxy)phenylenevinylene，poly(2methoxy5一octyloxyphe

7、nylenevinylene)，poly(2，5一dibutoxyphenylenevinylene)，poly(2，5dipentyloxyphenylenevinylene)ThespectralabsorptionpropertiesofpolymerswerecharacterizedbyUVVisThestructuresofeachstepproductionwerecharacterizedbyFTIRThroughthe

8、UVVisresearch，wecharacterizedthepropertyofthespectralabsorptionandwefoundthattheabsorptionpeakofinfraredWasmovedandwealsoanalyzedthereasonsofitThroughcalculatedtheenergygapofmodifiedPP釤theresultshowedthattheintroductiono