Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (1): 175.doi: 10.7503/cjcu20190425

• Polymer Chemistry • Previous Articles     Next Articles

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:2020-01-10 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)

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

CLC Number: 

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