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Öğe Fluorene based electrochromic conjugated polymers: A review(Elsevier Ltd., 2022) Çarbaş, Buket BezginThis review briefly describes electrochromic conductive polymers containing fluorene in the main chain or as a subunit/core. According to the arrangement of the fluorene unit and its chemical location on the chain, polyfluorene family was expressed in three classes; fluorene EC homopolymers, copolymers and functional EC polymers. With its sometimes surprising properties and countless advantages, fluorene monomer has many contributions to the electrochromic conductive polymer chain. Although there are many fluorene derived polymers in the literature that have been functionalized and/or used in various applications, this review only found it appropriate to focus on conductive electrochromic polymers with possessing fluorene chemical units. For this purpose, it has been tried to review and comment on fluorene polymers by comparing their chemical, electrochemical and optical properties in a logical framework. One of the biggest problems of electrochromic conductive polymer researchers is to analyze how the redox and electrochromic properties of polymers, which consist of a functional group, change according to the position on the conjugated polymer chain. For this reason, it is thought that the contribution and guideness of this study to the literature will be considerable.Öğe Electrochromic copolymers of 2,5-dithienyl-N-substituted-pyrrole (SNS) derivatives with EDOT: Properties and electrochromic device applications(Elsevier Ltd., 2022) Cansu Ergün, Emine Gül; Çarbaş, Buket Bezgin2,5-dithienyl-N-substituted-pyrrole (SNS) derivatives are one of the most preferred conjugated systems for obtaining conducting polymers since they have low oxidation potential and ease of electrochemical polymerization. SNS backbone can be substituted from the nitrogen atom on the pyrrole unit and resulting SNS derivatives allow fine tuning on the spectroelectrochemical properties. Moreover, copolymerization of SNS derivatives leads to further tuning or enhancement on the features of the obtained copolymer. 3,4-Ethylenedioxythiophene (EDOT) is the most promising conjugated unit used in copolymerization of conjugated systems. In this review, electrochemically synthesized conducting copolymers of SNS derivatives with EDOT in the literature were collected and discussed. According to N-substitutions, SNS derivatives in copolymers were grouped into four sections: phenyl-, amine-, alkyl-, and crosslinked- substituted derivatives. In each section, the effect of different substitutions and amount of EDOT incorporation on the electrochromic properties of the resulting copolymers were both evaluated in the text and summarized in the tables. Electrochromic device applications, if exist, of related copolymers were also discussed. Here, an overview is presented of available electrochromic copolymers for SNS derivatives with EDOT, providing a perspective for scientists aiming to design new SNS derivatives for copolymerization.
