Synthesis and characterization of SWNTs/P3OT composites via in situ microwave-assisted polymerization

  • C. López-Mata
  • M. E. Nicho
  • P. Altuzar-Coello
  • E. del Angel-Meraz
  • C. H. García-Escobar
  • G. Cadenas-Pliego


In this work, single-wall carbon nanotubes (SWNTs)/poly(3-octylthiophene) (P3OTMWa) composites were synthesized by the in situ chemical oxidative microwave-assisted polymerization. In situ polymerization of SWNTs/P3OTMWa composites was carried out by oxidative reaction of distilled 3-octylthiophene monomer with FeCl3 using anhydrous CHCl3 as solvent and different weight concentrations of nanotubes. Field emission scanning electron microscopy and scanning electron microscopy analysis revealed that in the SWNTs/P3OTMWa composites the nanotubes are uniformly dispersed in the polymer matrix and the polymer chains wrap around the nanotube walls. Nuclear magnetic resonance analysis indicated that with an increase in SWNTs concentration the head–tail regioregularity of the composites also increases. Fourier transform infrared spectroscopy studies indicate not fully ground-state interaction between the nanotubes and P3OTMWa molecules. This is also corroborated by the ultraviolet–visible measurements. The characteristic absorption peak shifts slightly to a longer wavelength due to the SWNTs content in the close packing of P3OTMWa. X-ray diffraction shows that the crystalline order is increased when the nanotubes were added to the polymer. The impressive conductivity values and enhanced dispersibility and stability of the composites in organic solvents encourage their application whithin optoelectronic devices field.


Carbon Nanotubes Polythiophenes Thiophene Ring Conjugation Length Terthiophene 



C. Lopez-Mata wishes to thank to Universidad Juarez Autonoma de Tabasco to UJAT-CS-2013B-023 Project, Center for Research in Engineering and Applied Sciences CIICAp-UAEMor. To José Campos Alvarez and Oscar Gomez-Daza for their technical support in samples characterization.

Conflict of interest

The authors do not have any conflict of interest, which it include any financial, personal or other relationships with other people or organizations.


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • C. López-Mata
    • 1
  • M. E. Nicho
    • 2
  • P. Altuzar-Coello
    • 3
  • E. del Angel-Meraz
    • 1
  • C. H. García-Escobar
    • 2
  • G. Cadenas-Pliego
    • 4
  1. 1.Universidad Juárez Autónoma de TabascoVillahermosaMexico
  2. 2.Centro de Investigación en Ingeniería y Ciencias AplicadasCuernavacaMexico
  3. 3.Instituto de Energías RenovablesUniversidad Nacional Autónoma de MéxicoTemixcoMexico
  4. 4.Centro de Investigación en Química AplicadaSaltilloMexico

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