Poly thieno thiophene

B. S. Lee, V. Seshadri, H. Palko, G. A. Sotzing, Ring-sulfonated poly(thieno-thiophene), Advanced Materials 2005, 17, 1792. 

In other investigations by the authors (2,3), poly(thieno[3,4-d]isothiazole), (II), and 2-pentafluorosulfanyl-thieno[3,4-b]thiophene, (III), respectively, were prepared. Poly(thieno[3,4-d]isothiazole) was prepared using (NH SaOg... 

XPS studies of other S-containing heterocycles, such as PTH, poly-thieno(2,3-h)thiophene (PTH23TH) and polydithienothiophene (PDTT), [55] also indicated that, in the oxidized state, the CIs and S2p core-level spectra appear at a higher BE than the neutral polymer and are characteristic of positively polarized atoms. This result appears to be inconsistent with the fact that, in the oxidized polymer, only one out of every 3 to 4 monomer units is associated with a dopant anion and the Cls and S2p core-level spectra should reveal the simultaneous presence of neutral and charged (or polarized) species (see also Sect. 3.2.1 below). 

TABLE 1. Selected poly(thieno[2,3-b]thiophene) derivatives and corresponding physical properties. 

Sotzing [2] prepared intrinsically conducting water-borne dispersions of poly (thieno[3,4-b]thiophene) homopolymer, (II), and copolymers of thieno[3,4-b] thiophene and 3,4-ethylenedioxythiophene, (111), for electroactive applications including electrochromic displays, optically transparent electrodes, and antistatic coatings. 

A series of alkyl-substituted poly(thieno[3,2-fe]thiophenes) was synthesized by cross-coupling and oxidative coupling reactions (2004MM6306). Their electronic properties were studied by UV Vis absorption and fluorescence spectroscopies. 

Lee, K., Sotzing, G.A., 2001. Poly(thieno[3,4-b]thiophene). Anew stable low band gap conducting polymer. Macromolecules 34, 5746-5747. 

Poly(thieno[2,3-l> thiophene) Poly(thieno[3,2 6] thiophene) Poly(thieno[3,4-h thiophene)... 

Colloidal Dispersions Ring Sulfonated Poly( thieno [ 3,4- i>] thiophene)... 

Poly(thieno[3,4-h]thiophene), like the monomers, was the last of the thienothiophenes to be synthesized. Hong and Marynick [28] had obtained the electronic structures of poly(thieno[3,4-h]thiophene) using modified extended-Huckel band calculations and predicted that PT34bT connected through 4-and 6-positions will have a bandgap of 1.5-1.6 eV (tt-tt, comparable to that of polyacetylene. In... 

Rutherford, D.R., et al. 1992. Poly(2,5-ethynylenethiophenediylethynylenes), related heteroaromatic analogs, and poly(thieno[3,2-l ]thiophenes) Synthesis and thermal and electrical properties. Macromolecules 25 2294. 

Sotzing, G.A. and K. Lee. 2002. Poly(thieno[3,4-l>]thiophene) A p- and n-dopable polythiophene exhibiting high optical transparency in the semiconducting state. Macromolecules 35 7281. 

Lee, B., V. Seshadri, and G.A. Sotzing. 2005. Poly(thieno[3,4-b]thiophene)-poly(styrene sulfonate) A low band gap, water dispersible conjugated polymer. Langmuir 21 10797-10802. 

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