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Chinese Journal of Polymer Science

, Volume 37, Issue 2, pp 136–141 | Cite as

Preparation and Characterization of Flexible, Transparent and Thermally Stable Aromatic Co-polyamides

  • José Antonio Tec-Sánchez
  • Andrés Iván Oliva Arias
  • Manuel Aguilar-Vega
  • Juan Valerio Cauich-RodríguezEmail author
  • José Luis Santiago-García
Article
  • 34 Downloads

Abstract

Two aromatic co-polyamides were synthesized combining two diacid monomers containing bulky pendant groups, 5-(9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximido)isophthalic acid (DEAIA) and 5-tert-butylisophthalic acid (TERT), with 4,4′-(hexafluoroisopropylidene)dianiline (HFA) or 2,3,5,6-tetramethyl-1,4-phenylenediamine (Durene) by direct polycondensation. The structures of the obtained aromatic co-polyamides were confirmed by FTIR, Raman and 1H-NMR. The co-copolyamide films, DHTH and DDTD, exhibited rms-roughness values between 0.94 and 1.60 nm, respectively. Moreover, they presented good thermal stability up to 300 °C. Young’s moduli of the co-polyamide films were between 4.1 and 4.3 GPa. X-ray diffraction results showed that the co-polyamide films were amorphous due to the incorporation of both bulky pendant groups, tert-butyl and dibenzobarrelene. The combination of bulky pendant groups provided intrinsically transparent co-polyamide films with a transmittance higher than 88% in the range of 400−780 nm. Due to these outstanding film and optical properties, they are suggested to be flexible substrates in applications for solar cell and other portable electronic devices.

Keywords

Co-polyamides Flexible films Transmittance Thermal stability Polycondensation 

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Notes

Acknowledgements

The authors thankfully acknowledge the financial support from CONACYT-México (No. 248378). J. A. Tec-Sánchez thanks CONACYT-México for the fellowship 427467. This work was partially supported by the project “Fortalecimiento e internacionalización del doctorado en ciencias (Materiales Poliméricos) del CICY” FOMIX YUC 2014-C17-247046. The authors thank LANNBIO Cinvestav-Merida for the NMR measurements.

Supplementary material

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Preparation and characterization of flexible, transparent and thermally stable aromatic co-polyamides

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Copyright information

© Chinese Chemical Society, Institute of Chemistry, Chinese Academy of Sciences and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • José Antonio Tec-Sánchez
    • 1
  • Andrés Iván Oliva Arias
    • 2
  • Manuel Aguilar-Vega
    • 1
  • Juan Valerio Cauich-Rodríguez
    • 1
    Email author
  • José Luis Santiago-García
    • 1
  1. 1.Unidad de MaterialesCentro de Investigación Científica de Yucatán A. C.Mérida, YucatánMéxico
  2. 2.Centro de Investigación y de Estudios Avanzados del IPNUnidad Mérida, Departamento de Física AplicadaMérida YucatánMéxico

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