Synthesis and electrochromic properties of epoxy materials containing triphenylamine units

  • Liping Hao
  • Wen Wang
  • Yan Sun
  • Haijun Niu
  • Yan Ji
Original Paper


A series of novel aromatic epoxy resins are prepared from the epichlorohydrin (ECH) and di(4-hydroxybenzylideneamino) triphenylamine (DHB-TPA) monomers, which are synthesized from different triphenylamine (TPA)-containing diamines and p-hydroxybenzaldehyde. FT-IR, 1H NMR and UV–Vis absorption spectra are employed to characterize the chemical structures of the polymers. All the polymers are amorphous, soluble in a variety of common organic solvents. The thermal properties of the polymers are investigated by thermogravimetric analysis (TGA) indicating good thermal stabilities compared with conventional epoxy resins on behalf of the introduction of aromatic TPA groups. All the polymers exhibit excellent reversibility of electrochromic characteristics by continuous cyclic scans between 0 and 2.0 V with the color changing from green to blue. The polymers also display photoelectrical response. The above properties prove that the series of polymers exhibit high thermal stability, excellent reversibility of electrochromic characteristics and photoelectric behaviours, which can be prospective candidates as electrochromic materials and photoelectrical conversion materials.


Triphenylamines Electrochromic properties Photoelectro conversions Epoxy resins 



The authors are grateful to the support of the National Science Foundation of China (Grant No. 51373049, 51372055, 51321061), Doctoral Fund of Ministry of Education of China (20132301120004).

Supplementary material

10965_2015_715_MOESM1_ESM.pdf (510 kb)
ESM 1 (PDF 510 kb)


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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.School of Material Science and EngineeringHarbin Institute of TechnologyHarbinPeople’s Republic of China
  2. 2.Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Department of Macromolecular Science and Engineering, School of Chemical, Chemical Engineering and MaterialsHeilongjiang UniversityHarbinPeople’s Republic of China

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