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化学学报
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化学学报 ›› 2011, Vol. 69 ›› Issue (13): 1582-1588. 上一篇    下一篇

研究论文

磁场作用下原位聚合制备聚苯胺/纳米ZnO复合材料

宋继中1, 贺英*,1, 潘照东1, 朱棣1, 陈杰1, 王均安2   

  1. (1上海大学材料科学与工程学院高分子材料系 上海 200072)
    (2上海大学材料科学与工程学院材料研究所 上海 200072)
  • 投稿日期:2010-07-05 修回日期:2011-01-03 发布日期:2011-03-02
  • 通讯作者: 贺英 E-mail:yinghe@staff.shu.edu.cn
  • 基金资助:

    上海市科委纳米技术专项基金;上海大学研究生创新基金

PANI/nano-ZnO Composites Prepared by In-situ Polymerization under Magnetic Field

Song Jizhong1; He Ying*,1; Pan Zhaodong1; Zhu Di1; Chen Jie1; Wang Junan2   

  1. (1 Department of Polymer Materials, School of Materials Science & Engineering, Shanghai University, Shanghai 200072)
    (2 Institute of Materials, Shanghai University, Shanghai 200072)
  • Received:2010-07-05 Revised:2011-01-03 Published:2011-03-02

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被引次数

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首先用硅烷偶联剂(KH550)对所制备粒径在100 nm以下的纳米ZnO进行表面修饰(M-ZnO), 然后在弱磁场(0.4 T)下乙醇/水/十二烷基苯磺酸(DBSA)体系中原位聚合分别制备了重均分子量达3×104的聚苯胺(PANI)及聚苯胺/纳米ZnO复合材料. 红外分析表明纳米ZnO的加入使聚苯胺的特征峰向低波数方向移动|溶解性测试表明聚苯胺及其复合材料在氯仿和N-甲基吡咯烷酮中均有较高的溶解度(高于80%)|X-射线衍射表明磁场能有效地改善聚苯胺主链的规整性, 使聚苯胺分子链有更好离域的π电子体系|M-ZnO的引入显著地提高了PANI的电导率(可达220 S/m), 同时具有较好的透光性(80%)|这表明PANI/纳米ZnO复合材料在柔性光电器件领域具有潜在的应用价值.

关键词: 聚苯胺/纳米ZnO复合材料, 原位聚合, 柔性光电器件, 磁场, 空穴注入层

After ZnO nanoparticles with diameter about 100 nm were surface modified by the coupling agent (KH550), polyaniline (PANI) and polyaniline/nano-ZnO composites with weight-average molecular weight of 3×104 were synthesized by in-situ polymerization method in the presence of a constant magnetic field (0.4 T) and ethanol/water/dodecylbenzene sulfonic acid (DBSA) system. FT-IR spectra showed the characteristic peaks of PANI shifted to the lower wavenumber when nano-ZnO was loaded. Polyaniline and its composites had good solubility in chloroform and N-methyl pyrrolidone (higher than 80%). The effect of magnetic field and nano-ZnO on orientation structure of PANI were analyzed by X-ray diffraction (XRD). PANI had higher crystallinity and more obvious orientation structure under the magnetic field. Polyaniline/nano-ZnO composites had the remarkable electrical conductivity about 220 S/m and high transmittance about 80%. It is showed that PANI composites is very suitable to be used in the field of flexible optoelectronic devices.

Key words: polyaniline/nano-ZnO composite, in-situ polymerization, flexible optoelectronic devices, magnetic field, hole injection layer

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