PREPARATION AND CONDUCTIVE BEHAVIOR OF POLYANILINE/IONIC LIQUID/MONTIMORILLONITE NANOCOMPOSITES

WANG Ze; XIONG Yubing; WANG Hong; WANG Rongmin; WANG Yunpu

doi:10.3724/SP.J.1105.2010.09248

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PREPARATION AND CONDUCTIVE BEHAVIOR OF POLYANILINE/IONIC LIQUID/MONTIMORILLONITE NANOCOMPOSITES

Research Article | 更新时间：2021-03-19

- PREPARATION AND CONDUCTIVE BEHAVIOR OF POLYANILINE/IONIC LIQUID/MONTIMORILLONITE NANOCOMPOSITES
- Acta Polymerica Sinica Issue 7, Pages: 812-818(2010)
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- DOI：10.3724/SP.J.1105.2010.09248
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- Published：20 July 2010，
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WANG Ze, XIONG Yubing, WANG Hong, WANG Rongmin, WANG Yunpu. PREPARATION AND CONDUCTIVE BEHAVIOR OF POLYANILINE/IONIC LIQUID/MONTIMORILLONITE NANOCOMPOSITES. [J]. Acta Polymerica Sinica (7):812-818(2010)
DOI：

WANG Ze, XIONG Yubing, WANG Hong, WANG Rongmin, WANG Yunpu. PREPARATION AND CONDUCTIVE BEHAVIOR OF POLYANILINE/IONIC LIQUID/MONTIMORILLONITE NANOCOMPOSITES. [J]. Acta Polymerica Sinica (7):812-818(2010) DOI： 10.3724/SP.J.1105.2010.09248.

摘要

采用1-羧甲基-3-甲基咪唑氯化盐离子液体对钠化蒙脱土进行插层改性，然后用苯胺的盐酸溶液进行二次插层，以过硫酸铵为氧化剂，盐酸溶液为掺杂剂，使进入离子液体/蒙脱土(CMMIm/MMT)层间的苯胺(An)发生氧化聚合反应，制备了一种具有良好导电性的聚苯胺/离子液体/蒙脱土复合材料(PANI/CMMIm/MMT).用红外光谱、X-射线衍射，热重分析和DSC对样品进行了表征.结果表明当离子液体/蒙脱土用量为7.5%、盐酸浓度为1 mol/L、过硫酸铵与苯胺的摩尔比为1∶1、0℃下反应6 h时制备的PANI/CMMIm/MMT纳米复合材料电导率最高，达到了0.3 S/cm，是相同条件下聚苯胺/钠化蒙脱土纳米复合材料电导率的2.5倍，聚苯胺的7.5倍.

Abstract

Sodium montmorillonite (Na-MMT) was modified with 1-carboxymethyl-3-methylimidazolium chloride (CMMIm)

then aniline monomers were inserted into CMMIm/MMT.Using ammonium persulfate and hydrochloric acid as oxidant and dopant

respectively

conductive polyaniline/ionic liquid/montmorillonite(PANI/CMMIm/MMT) nanocomposites were prepared by chemical oxidative polymerization of aniline(An) which was intercalated in the interlayer of MMT.PANI/CMMIm/MMT nanocomposites were characterized with the measurements of FTIR

XRD and TG.The experimental results indicated that the conductivity of PANI/CMMIm/MMT nanocomposites was 0.3 S/cm when the amount of CMMIm/MMT was 7.5%

the concentration of HCl was 1 mol/L

the mass ratio of PANI and (NH4)2S2O8 was 1∶1

the polymerization time and temperature were 6 h and 0℃

respectively.The conductivity of PANI/CMMIm/MMT nanocomposites was 2.5 times as high as that of PANI/Na-MMT and 7.5 times as high as that of PANI.The conducting stability of PANI/CMMIm/MMT nanocomposites is higher than that of PAn because the carboxyl of 1-carboxymethyl-3-methyl imidazolium chloride provided partial proton acid.

关键词

聚苯胺离子液体蒙脱土纳米复合材料电导率

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Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology

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