Electrochemical, optical and electrochromic properties of imine polymers containing thiophene and carbazole units
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Tarih
2009
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
New imine polymers containing thiophene and carbazole moiety were synthesized by using both chemically oxidative in the presence of FeCl3 and electrochemically oxidative process. While UV-vis, FT-IR, H-1- and C-13 NMR techniques were used for the structural characterization, the number-average molecular weight (M-n), weight-average molecular weight (M-w) and polydispersity index (PDI) values were determined by size exclusion chromatography (SEC). The highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO) energy levels, electrochemical (E-g') and optical band gap (E-g) values were calculated by using the results of cyclic voltammetry and UV-vis absorption spectroscopy measurements, respectively. Spectroelectrochemical measurements were carried out against the changes in the optical properties of conducting polymers upon voltage changed. Also the yellow color of film changed to green color with applied potential. Conductivities of these polymers were determined by using four-point probe technique. It was seen that the conductivities were increased by iodine doping. (C) 2009 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Conducting polymers, Imine polymers, Carbazole, Thiophene
Kaynak
Synthetic Metals
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
159
Sayı
11
