Effects of reaction sequence on the colloidal polypyrrole nanostructures and conductivity

Juyoung Choi, Hyungtae Kim, Seungjoo Haam, Sang Yup Lee

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The relationship between nanoscaled morphology and macroscopic electrical conductivity of polypyrrole (PPy) nanostructures was qualitatively investigated. The PPy nanostructures were prepared via microemulsion polymerization using ionic surfactants. The morphology of PPy was influenced by both the type of ionic surfactants and reaction sequences; specifically, the PPy structures were highly influenced by the reaction sequence when anionic surfactant of SDS was used. By changing reaction sequence, a gel-like PPy was formed influencing on the macroscopic electrical conductivity. The results indicate that the macroscopic conductivity of PPy is affected by its nanoscaled structures as determined by the reaction conditions.

Original languageEnglish
Pages (from-to)743-749
Number of pages7
JournalJournal of Dispersion Science and Technology
Issue number6
Publication statusPublished - 2010 Jun

Bibliographical note

Funding Information:
Received 6 January 2009; accepted 1 February 2009. This work was supported by Korea Science and Engineering Foundation (Grant number: KOSEF 2007-8-1158). Address correspondence to Sang-Yup Lee, Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea. E-mail: leessy@yonsei.ac.kr

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Polymers and Plastics


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