Controlled growth of hollow polyaniline structures: From nanotubes to microspheres

Pirhady Tavandashti, N ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1016/j.polymer.2013.07.071
  3. Publisher: 2013
  4. Abstract:
  5. Homogeneous and fairly monosized microspherical structures of polyaniline has been synthesized using a simple soft template method with β-naphthalene sulfonic acid (β-NSA) as both the surfactant and dopant, and ammonium persulfate (APS) as the oxidant at 2-5 C. The morphology of PANI-NSA was successfully controlled from nanotubes to microsphere, by changing the synthesis conditions (i.e. pH, the concentration of surfactant and monomer, and temperature). Some mechanistic aspects of the formation of nanotubes and hollow spheres have been discussed precisely based on SEM, TEM, DLS, FTIR and UV-visible results. Moreover, synthesis was performed under acidic environment to obtain further understanding about the formation mechanisms
  6. Keywords:
  7. Hollow micro/nanostructures ; Soft template ; Acidic environment ; Controlled growth ; Formation mechanism ; Mechanistic aspects ; Micro/nanostructures ; Soft template methods ; Synthesis conditions ; Microspheres ; Naphthalene ; Polyaniline ; Surface active agents ; Nanotubes
  8. Source: Polymer (United Kingdom) ; Volume 54, Issue 21 , 2013 , Pages 5586-5594 ; 00323861 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0032386113007325