PANIPVA共混薄膜的制备与表征

PANI/PVA1121.2016202.200082将单体苯胺与掺杂剂十二烷基苯磺酸混合，再进行氧化聚合反应得到聚苯胺乳液.用匀胶机将聚苯胺乳液旋涂成膜，并采用扫描电子显微镜（SEM）、傅氏转换红外线光谱分析仪（FTIR）、电化学工作站等方法对聚苯胺共混薄膜进行结构和性能的表征.结果表明：聚苯胺共混薄膜表面结构完整，且膜表面聚苯胺颗粒分散性好，PANI/PVA混合材料的导电性能和电致变色性能受合成参数的影响，当nDBSA/nAN=1.03时，聚苯胺共混薄膜的导电率达1.28S/cm，可用作电致变色材料；膜具有良好的热稳定性能，其分解温度为301℃左右.聚苯胺；乳液聚合；电致变色TQ342.83A1671－024X201304－0006－04SynthesisandcharacterizationofPANI/PVAblendmembraneWANGXiang-qin1XINBin-jie1XUJian21.CollegeofFashionShanghaiUniversityofEngineeringScienceShanghai201620China2.ShangtexHoldingCoLtdShanghai200082ChinaAbstractTheinitialsolutionisconstitutedmainlybythemonomeranilinemixedwithdopantdodecylbenzenesulfonicacid，thenPANIemulsionisachievedbyoxidationpolymerizationreaction.Polyaniline（PANI）membraneiscoatedbytheKW-4Aspincoater，andthestructureandperformanceofPANIblendmembranearecharacter-izedbythescanningelectronmicroscope（SEM），Fouriertransforminfraredspectroscopymeter（FTIR）andelectrochemicalworkstation.TheresultsindicatethatpolyanilineblendmembranesurfacestructureiscompleteandPANIparticlescanbedispersedevenlyinthePVA（Polyvinylalcohol）matrix；theconductivityandelec-trochemicalpropertiesofthePANI/PVAcompositescanbeaffectedbysynthesisparameters.WhennDBSA/nAN=1.03underthesamecondition，theconductivityofpolyanilinemembraneisupto1.28S/cmwiththebestelec-trochromicperformance，thethermalstability，andthedecompositiontemperatureof301℃，whichisverysuit-ableastheelectrochromicmaterial.KeywordspolyanilineelusionpolymerizationelectrochromicbehaviorJOURNALOFTIANJINPOLYTECHNICUNIVERSITY2013-03-18[2012]30222012yjs441988—.1974—[e-mail]2070[1].1977Shirakawa、103S/cm20.30π、、.[2]、、、.、[3].、、[4][5].32420138Vol.32No.4August20134[6-9]5.、、.PVA/.、PANIPANIPANI、、[10].11.1ARARPVAAH-26DBSATCIITO36.5%.KW-4AS-2700AVATAR370FTIRThermoNicoletThermoFisherUV-160PCSTAPT-1000LinseisCHI420A.1.2PANI/PVAPVA90℃PVADBSAANAPS40℃10min2~4hPANI.PANI.1.3PANI/PVAKW-4APANI/PVA.PANI/PVA600r/min15s6000r/min20s4hPANI.1.4S-2700PANIPVAAVATAR370FTIRThermoNicoletPANIUV-160PCPANISTAPT-1000PANICHI420APANIPANI/PVA50mV/s1mol/L-1.5~+1.5V.22.1[11][AN][APS]0.95~1.DBSA1.1DBSA.DBSAPANI/PVA[DBSA]/[AN]1.03.[DBSA]/[AN]1.03PANI/PVA1.28S/cm.PANIπ、DBSA、.0.21.60.8[DBSA]/[AN]/S·cm-10.40.61.01.41.21.00.80.60.41.21.41[DBSA]/[AN]PANIFig.1ConductivityofPANIindifferentmolarratesof[DBSA]/[AN]PANI/PVA7——32DBSA1-14-4DBSA1-4π.DBSA.2.2PANI/PVA2PANI/PVA.2PANI3~15μm.PANI.2.3PANI/PVA3PANI/PVAFT-IR.3PANI1459cm-11697cm-1PANIC=CC=N1407cm-1C-N1161cm-1PANIC-H1111cm-11060cm-1N=Q=N680~850cm-114C-H.32930cm-13251cm-12PANIN-HC-HPANI[12].PANI.2.4PANI/PVA4PANI/PVA10℃/min1PANI/PVA.4PANI/PVAPVADBSA.4TGDTG.4100℃PVA140~180℃PVAPANI301℃a500b20002PANI/PVAFig.2SEMimagesofPANI/PVAblendedmembrane100040002500/cm-1/%150020003000100989694929088868482807835003251293017271697145914071161111110608097633PANI/PVAFT-IRFig.3FT-IRspectrumofPANI/PVAblendedmembrane1TGTab.1ParametersofTGcurveofPANIblendedmaterial100700400/℃/%200300500100806040206004PANI/PVATG-DTGFig.4CurveofPANI/PVAblendedmembraneaboutthermalgravimetricanalysis/℃/℃100℃/%700℃/%PANI/PVA30341065250.0-0.1-0.2-0.3-0.4-0.5-0.6-0.7TGDTG/%·min-18——4PANI/PVA598℃.2.5PANI/PVA[13]..PANI/PVA20μm.5PANI/PVA.5PANI/PVA-1.5~+1.5V、、、、.PANI/PVA50、100200mV/s6.6CV50mV/s-0.55V100200mV/s0.21V0.24V.3DBSAPANInDBSA/nAN=1.031.28S/cm.PANI.PANI/PVAPANI.[1].[J].2011253107-110.[2]./TiO2/[J].2010111346-1350.[3].[J].2004343-47.[4].[J].2010624-25.[5].、[J].201226750-57.[6].[J].20005491-494.[7].[J].200721S3328-330341.[8].[J].200832164-6784.[9].[J].2011421144-147.[10].、[J].1996772-77.[11].[J].2000175491-494.[12].[J].20077118-22.[13].V2O5[J].2009322243-245.5PANI-1.5~1.5VFig.5ImagesofPANIblendedmembraneinvoltagebetween-1.5Vand+1.5V-1.51.00.0/V/A-1.0-0.50.50.00090.00070.00050.00030.0001-0.0001-0.0003-0.0005200mV/s100mV/s50mV/s6PANI/PVAFig.6CVcurvesofPANI/PVAblendedmembraneatdifferentscanrates9——