Herein, synthesis of two
homopolymers namely, poly-2,2′-(9,9-dioctyl-9h-fluorene-2,7-diyl)bisthiophene
(PBT), poly-pyrrole-3-carboxylic acid (PP3CA) and fluorene and pyrrole
comprising five novel copolymers (CoP1, CoP2, CoP3, CoP4, CoP5) were
electrochemically synthesized. Each electrolytic solution was prepared with
different monomer feed ratios to investigate the effect of comonomer ratio on
electrochromic and electrochemical properties. After synthesis, homopolymers
and copolymers were compared in terms of their electrochemical,
spectroelectrochemical and colorimetry properties. The number of studies on
electrochromic characterization of pristine P3CA group was limited in
literature, hence in this study P3CA was electrochemically inserted into the
polymer chain via copolymerization.CoP1 with 1:1 (BT: P3CA) monomer feed ratio
exhibited the lower optical band gap and red shifted neutral state absorption
compared to PP3CA, additionally light yellow color of PP3CA turned out to be
multichromic for CoP1with the insertion of BT unit via electrocopolymerization.
Primary Language | English |
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Journal Section | Engineering Sciences |
Authors | |
Publication Date | September 30, 2019 |
Submission Date | March 18, 2019 |
Acceptance Date | August 5, 2019 |
Published in Issue | Year 2019Volume: 40 Issue: 3 |