Journal of Materials Science

, Volume 53, Issue 4, pp 3016–3026 | Cite as

Effects of indigo carmine concentration on the morphology and microwave absorbing behavior of PPy prepared by template synthesis

  • Shuchun HuEmail author
  • Yu Zhou
  • Lingling Zhang
  • Sijin Liu
  • Kai Cui
  • Yaoyao Lu
  • Kainan Li
  • Xiaodong Li


In the study, a series of polypyrrole (PPy) samples were prepared by a method of template synthesis at different indigo carmine (IC) concentrations while keeping the amount of pyrrole and FeCl3 as well as the reaction conditions unchanged. Effects of IC concentration (MIC) on the morphology, conductivity and microwave absorbing behavior of the obtained PPy products were investigated. The results showed that the morphology of PPy transformed from granular flocking to rods and then to spiral rods as MIC increased from 0.05 to 7.50 mM, and the morphology transformation mechanism of PPy was attributed to the structural transformation of IC micelles caused by the change of MIC. The conductivity of PPy was also found to be influenced by MIC. Further investigation indicated that the spiral rod-shaped PPy (S-5) showed obviously superior microwave absorbing behavior compared with that of the granular flocking shaped PPy or that of the rod-shaped PPy, which was attributed to the benefits of its spiral structure and the comparably higher dielectric loss resulted from its lower conductivity.



We would like to express our great thanks to the financial support from the following foundations: Opening Fund of High Technology Organic Fiber Key Laboratory of Sichuan Province (PLN 2016-09, PLN 2015-01).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Shuchun Hu
    • 1
    Email author
  • Yu Zhou
    • 1
  • Lingling Zhang
    • 1
  • Sijin Liu
    • 2
  • Kai Cui
    • 2
  • Yaoyao Lu
    • 1
  • Kainan Li
    • 1
  • Xiaodong Li
    • 1
  1. 1.Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengduChina
  2. 2.Key Laboratory of Transportation Tunnel Engineering (Ministry of Education), School of Civil EngineeringSouthwest Jiaotong UniversityChengduChina

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