Poly(3,4‐alkylenedioxypyrroles): The PXDOPs as Versatile Yet Underutilized Electroactive and Conducting Polymers

Walczak, Ryan M.; Reynolds, John R.

doi:10.1002/adma.200502312

Cited by 151 publications

(116 citation statements)

References 48 publications

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“…On the other hand, N-alkylated PXDOPs (17) derivatives are shown to have higher redox potential and band gap compared to N-hydro derivatives (16). Such observation is explained on the basis of backbone distortion where full visible light transmissivity with low oxidation potential is achieved [12]. However, due to synthetic challenges in pyrrole chemistry, only moderate progress has been made till now on such systems.…”

Section: Color Controlmentioning

confidence: 97%

Electrochromic Polymers

Çamurlu¹,

Toppare²

2013

Encyclopedia of Polymeric Nanomaterials

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Synonyms Conjugated electrochromic polymers DefinitionPolymers changing their colors upon applied potential. ChromismChromism is defined as the reversible change of material's color resulting from a stimulus. The stimulus could be in the form of electrochemical effect (electrochromism), temperature change (thermochromism), electromagnetic radiation (photochromism), change in pH (halochromism), ion effect (ionochromism), solvent effect (solvatochromism), and mechanical effect (piezochromism). Among those, electrochromism has been the center of much interest for its highly promising applications such as smart mirrors and windows, displays, active optical filters, data storage, and camouflage material for military purposes [1]. More precisely, electrochromism is the process of reversible optical change (transmittance and/or reflectance) which is associated with the electrochemically induced oxidation-reduction of the material. Color variation generally occurs between a transparent and a colored state or between two colored states. Additionally, some exceptional electrochromic materials, which are termed as multichromic, could display several colors depending on their oxidation state. Based on their coloration process these materials are also designated as anodically coloring (coloration upon oxidation) or cathodically coloring (coloration upon reduction). Materials that possess electrochromic activity can be mainly classified as metal oxides, molecular dyes, and conducting polymers.A typical and most widely studied example of metal oxides is tungsten trioxide where electrochromic response is achieved by the reduction of W VI sites in tungsten trioxide thin film to W V. Upon this, the color of the film changes from transparent to blue. The blue color of the film can be reversibly erased by the electrochemical oxidation [2]. The generalized equation can be written as follows:

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Section: Color Controlmentioning

confidence: 97%

Electrochromic Polymers

Çamurlu¹,

Toppare²

2013

Encyclopedia of Polymeric Nanomaterials

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“…As reflected in the voltammogram [ Figure 2(a)], the monomer exhibited an irreversible electroactivity having an onset at 1.4 V. However, the current intensity sharply decreased upon repetitive cycles. Despite utilization of various solvents (acetonitrile and dichloromethane) and supporting electrolytes (TBAPF 6 and LiCIO 4 ) polymer formation was not observed.…”

Section: Electrochemical Polymerizationmentioning

confidence: 69%

Optoelectronic properties of thiazole‐based polythiophenes

Çamurlu

Guven

2015

J of Applied Polymer Sci

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In this work, two thiazole-containing monomers N-(thiazol-2-yl)22-(thiophen-3-yl)acetamide (ThDBTH) and N,N 0 -([4,4 0 -bithiazole]-2,2 0 -diyl)bis(2-(thiophen-3-yl)acetamide) (Th 2 DBTH) were synthesized through amidification reaction of 2-(thiophen-3-yl)acetyl chloride with aminothiazole derivatives and characterized by FTIR and 1 H and 13 C-NMR. The monomers were subjected to electrochemical polymerization and optoelectronic properties of the resultant conducting polymers were investigated. Additionally, copolymerization of ThDBTH in the presence of thiophene was achieved. PThDBTH, PTh 2 DBTH, and P(ThDBTH-Th) exhibited optical band gaps of 2.15, 2.30, and 1.95 eV, respectively. Switching time and optical contrast of the polymers were evaluated via kinetic studies. The P(ThDBTH-Th) revealed satisfactory switching time and appropriate optical contrast of 1.27 s and 24.97%, respectively.

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“…This redox (doping/dedoping) behavior is typical for electroactive conducting polymers. [34] In situ circular dichroism (CD) spectra for the PT Ã films were obtained under various electrochemical conditions in monomerfree 0.1 M TBAP/acetonitrile solution. As shown in Figure 4, PT Ã exhibits a Cotton effect associated with the p-p Ã transition of the main-chain at short wavelengths.…”

Section: Resultsmentioning

confidence: 99%

An Optically Active Polythiophene Exhibiting Electrochemically Driven Light‐Interference Modulation

Goto¹

2009

Adv Funct Materials

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Optically active polythiophene (PT*) is successfully prepared by electrochemical polymerization using a cholesteric liquid crystal (CLC) electrolyte solution. Polarizing optical microscopy observations of the polymer reveal a well‐resolved fingerprint texture similar to the optical texture of the CLC. Circular dichroism measurements indicate a Cotton effect. The PT* film produced by the asymmetric polymerization in CLC exhibits a variable diffraction function, electrochemically driven refractive index modulation, and electrochromism originating from the periodic dielectric structure, representing a form of structural electrochromism.

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Poly(3,4‐alkylenedioxypyrroles): The PXDOPs as Versatile Yet Underutilized Electroactive and Conducting Polymers

Cited by 151 publications

References 48 publications

Electrochromic Polymers

Electrochromic Polymers

Optoelectronic properties of thiazole‐based polythiophenes

An Optically Active Polythiophene Exhibiting Electrochemically Driven Light‐Interference Modulation

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