Ethylenedioxypyrrole

Alternation of electron-rich and poor units in conjugated systems is expected to reduce the handgap due to the concomitant increase of HOMO level and decrease of LUMO level. Hence the use of stronger donor units, such as EDOT [92] and 3,4-ethylenedioxypyrrole (EDOP) [93], in PTV-like structure 28 and 29, respectively, allowed a further decrease of the gap to 1.1-1.2 eV. Recently, following the same approach a soluble narrow handgap polymer 30 (Eg =1.7 eV) was described by Reynolds and coworkers... 

Gaupp, C.L., K. Zong, P. Schottland, B.C. Thompson, C.A. Thomas, and J.R. Reynolds. 2000. Poly(3,4-ethylenedioxypyrrole) Organic electrochemistry of a highly stable electrochromic polymer. Macromolecules 33 1132-1133. 

Zong, K., K.A. Abboud, and J.R Reynolds. 2004. A palladium-catalyzed synthesis of 2-alkylidene-pyrrolo[c]-l,4-dioxanes Synthesis of 3,4-(cis-l,2-dimethyl)ethylenedioxypyrrole. Tetrahedron Lett 45 4973 975. 

An in situ electrochemical strain gauge method was applied to monitor the mechanical properties of conducting and redox polymers such as PP, poly(3,4-ethylenedioxypyrrole) and poly(3,6-bis(2-(3,4-ethylenedioxy)thienyl)-A-carbazole) during their redox transformations [282]. 

Ethylenedioxypyrrole (EDOP, 2) and Propylenedioxypyrrole (PRODOP, 3) are synthesized from dimethyl-3,4-dihydroxypyrrole-2,5-dicarboxylate in five... 

Souze et al. have fabricated the solid electrolyte-based supercapacitor based on SWCNTs/PANI on polyethylene terephthalate-PET substrates. They have used H2SO4-PVA gel electrolyte and measured the pseudocapacitive properties and estimated the coulometric specific capacitance of 76.7 F cm [87]. The poly (3,4-ethylenedioxypyrrole) and PEDOT wrapped Sb2S3 nanorods were synthesized hydrothermally by Reddy et al. [88] and 1008 F/g specific capacitance, 504 W/kg power density, and 88 % capacitance retention over 1000 cycles were estimated in the fabricated supercapacitor. Further, the supercapacitor was fabricated using semisolid electrolyte using PMMA in ionic liquid. 

The first synthesis of a 3,4-dialkoxypyrrole (3,4-dimethoxypyrrole) was published by Merz et al. The EDOT analog3,4-ethylenedioxypyrrole (EDOP) soon followed,and its poly(styrenesulfonic acid) complex PEDOPrPSS analog to PEDOT PSS was claimed in a patent 1996. ... 

O. Tuerkarslan, S. K. Kayahan, and L. Toppare. 2009. A new amperometric cholesterol biosensor based on poly(3,4-ethylenedioxypyrrole). Sensors and Actuators, B Chemical B136(2) 484r-488. 

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