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Optical and electrochemical properties of thermostable polymers containing light‐emitting units
Author(s) -
Damaceanu MarianaDana,
Jarzabek Bozena,
Bruma Maria
Publication year - 2014
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23645
Subject(s) - cyclic voltammetry , materials science , fluorene , polymer , homo/lumo , electrochemistry , photoluminescence , oxadiazole , band gap , photochemistry , analytical chemistry (journal) , polymer chemistry , chemistry , optoelectronics , molecule , electrode , composite material , organic chemistry
Two series of polymers and copolymers containing oxadiazole units have been studied with respect to their photo‐optical and electrochemical behavior. Fluorene units were introduced in the macromolecular chain together with oxadiazole rings in order to obtain a better balance between electrons and holes injection and transporting properties. Upon irradiation with UV light the polymers showed photoluminescence maxima in the blue spectral range. Cyclic voltammetry was performed in order to obtain information about the electrochemical stability and reversibility of the redox processes of these polyoxadiazoles. The highest occupied molecular orbital and lowest unoccupied molecular orbital energy levels, and electrochemical and optical band gap values were calculated by using the results of cyclic voltammetry and UV/vis spectroscopy, respectively, showing very good electron injection and transport characteristics. POLYM. ENG. SCI., 54:1126–1133, 2014. © 2013 Society of Plastics Engineers