导电聚苯胺聚醋酸乙烯酯复合膜的合成及特征

1311999.3JOURNALOFSHENYANGINSTITUTEOFCHEMICALTECHNOLOGYVol.13No.1Mar.1999:1004-4639(1999)01-0012-05/*,,(,110021):以过硫酸铵为氧化剂,盐酸为掺杂剂,采用原位氧化聚合法合成了聚苯胺(PAn)/聚醋酸乙烯酯(PVAc)复合材料,通过溶液浇铸的方法制成了性能优良的可溶性导电自支撑复合膜,电导率达到10-2Scm-1;考察各种反应条件对复合膜电导率的影响,获得了最佳聚合反应条件.用扫描电镜和红外光谱对导电复合膜的表面形态及组成进行表征,并进行了环境稳定性的测试.:;;;;:O631:A,,[1].,,.,,[2~4][5,6].,,/.,.111(An):,(NH4)2S2O8:,.:.12PAn/PVAcPVAc(1molL-1),N2,,,,,,G4,,.:1998-11-25:(94-191):(1969-),,,,,.N-,,,PAn/PVAc.1313110cm20cm,.132PAnPAn/PVAc,.133KBr,,IR-435.134N-,UV-240.135SQ-201.221PAn/PVAc211An/PVAc1,,,An/PVAc041061,,.PAn.,PAn,,;,,,;,,1An/PVAc:40;:6h;=21()2AnPVAc=0.61();:6h=21()131:/,.,PAn,.2122,40,40.,40.,.2133,,,PAnLeucoemeraldine,4(a),PAn;,PAn(Emeraldine),4(b),PAn;,,4(c),PAn,.,PVAc.3:40;AnPVAc=0.61();(NH4)2S2O8An=21()4PAn22141999.PAn/PVAc30,.5,,,.237PAn/PVAcPAn,6.156614761300cm-13,CCCCCN,PAnIR,PAn,1730cm-1PVAc.,052.24N-.7,.258PAn9PAn/PVAc89PAnPAn/PVAc,,,.151:/:[1],.-[J].,1998,11(3):337.[2]CaoY,SmithP,HeegerAJ.Counter-ioninducedprocessibilityofconductingpolyanilineandofconductingpolyblendsofpolyanilineinbulk[J].SynthMet,1992,48:91.[3]HeegerAJ.Nonlinearopticalpropertiesofsemiconductingpolymer[J].SynthMet,1993,55~57:3471.[4]TrivediDC,DhawanSK.Electricaltransportinsomepolymetallophthalocyanines[J].SynthMet,1993,58:309.[5]GeniesEM,NobelP.Polyaniline:preparations,propertiesandapplication[J].JElectroanalChem,1991,89:310.[6]GeniesEM,NobelP.Nobelinsituconductivitymeasurementsofpolyaniline,poly(3-methylthiophene)andanalkoxysulfonatedpolyaniline[J].SynthMet,1993,55~57:4192.SynthesisandCharacteristicsofConductiveCompositeFilmfromPolyanilineandPolyvinylAcetateGUYa-xin,WANGChang-song,ZHAOL-iqun(ShenyangInstituteofChemicalTechnology,Shenyang110021,China)Abstract:Conductivecompositematerialsofpolyaniline(PAn)/polyvinylacetate(PVAc)wassynthesizedbyin-situchemicaloxidativepolymerizationofanilineinaqueousPVAcsolutionbyusingammoniumpersulfateasoxidativeagentandhydrochloricacidasdopant.Thefree-standingcompositivefilmwasmadethroughtheevaporationofN-methylpyrrolidone.Theelectricconduc-tivityofthefilmreachedupto10-2Scm-1measuredbystandardfour-probemethod.Thecon-ditionsofsynthesiswerediscussed,andaproperpolymerizationconditionwasobtained.ThestructureandcomponentofcompositeswerecharacterizedbySEMandIRspectrum,andthesta-bilityofthefilmwasdiscussedaswell.Keywords:polyaniline;polyvinylacetate;in-situoxidativepolymerization;compositivefilm;electricconductivity重要启事本刊已入编中国学术期刊(光盘版),作者稿件一经录用,将同时被中国学术期刊(光盘版)收录,如作者不同意收录,请在投稿本刊时提出声明,否则将视为同意收录.161999