高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (1): 175-182.doi: 10.7503/cjcu20190425

• 高分子化学 • 上一篇    下一篇

聚吡咯/聚苯胺二元复合纳米管及其热电性能

王乙涵1,尹强2,杜凯2,殷勤俭1,*()   

  1. 1. 四川大学化学学院, 成都 610064
    2. 中国工程物理研究院激光聚变研究中心, 绵阳 621000
  • 收稿日期:2019-07-26 出版日期:2019-12-05 发布日期:2019-12-04
  • 通讯作者: 殷勤俭 E-mail:changer@scu.edu.cn
  • 基金资助:
    国家自然科学基金批准号(51673122);国家自然科学基金批准号(51973127);四川省科技基金资助批准号(2018GZ0461)

Polypyrrole/Polyaniline Nanocomposite Nanotubes with Enhanced Thermoelectric Properties

WANG Yihan1,YIN Qiang2,DU Kai2,YIN Qinjian1,*()   

  1. 1. College of Chemistry, Sichuan University, Chengdu 610065, China
    2. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621000, China
  • Received:2019-07-26 Online:2019-12-05 Published:2019-12-04
  • Contact: Qinjian YIN E-mail:changer@scu.edu.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China Nos(51673122);? Supported by the National Natural Science Foundation of China Nos(51973127);the Sichuan Science and Technology Program, China No(2018GZ0461)

摘要:

以甲基橙为软模板, 六水合三氯化铁为催化剂, 在水溶液中通过沉淀聚合法制备了管径为20~180 nm的聚吡咯(PPy)纳米管; 以聚吡咯纳米管为基体, 通过原位聚合制备了聚吡咯/聚苯胺(PPy/PANi)二元复合纳米管. 研究发现, 在PPy/PANi二元复合纳米管中, PANi均匀地包覆在PPy纳米管表面, 并形成有序堆积, PPy与PANi间存在强烈的π-π共轭作用与氢键作用, 当PPy与PANi单体摩尔比为1∶2时, PPy/PANi二元复合纳米管的功率因子在363 K时达到0.74 μW/(m·K 2).

关键词: 聚吡咯纳米管, 聚苯胺, 纳米复合材料, 热电性能

Abstract:

Polypyrrole(PPy)/polyaniline(PANi) composite nanotubes were synthesized by in situ polymerization using PPy nanotubes as the templates. Structure analysis shows the combination of PANi and PPy with similar molecular chain structure can effectively enhance the electrical conductivity due to the π-π conjugated interaction and hydrogen-bonding in PPy/PANi composite nanotubes. Besides, the chain of PANi in PPy/PANi develops towards a larger crystalline orientation along with the increasing PANi content, forming a more regular and compact chain stacking, which is beneficial to improving the thermoelectric properties of the materials. Consequently, the power factor of the PPy/PANi composite nanotubes achieve 0.74 μW/(m·K 2) at 363 K when the molar ratio of PPy to PANi is 1∶2.

Key words: Polypyrrole nanotube, Polyaniline, Nanocomposites, Thermoelectric property

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