6375-06-0Relevant articles and documents
Comparison of the thermally stable conducting polymers PEDOT, PANi, and PPy using sulfonated poly(imide) templates
Somboonsub, Bongkoch,Srisuwan, Suttisak,Invernale, Michael A.,Thongyai, Supakanok,Praserthdam, Piyasan,Scola, Daniel A.,Sotzing, Gregory A.
, p. 4472 - 4476 (2010)
We showed that it is possible to use sulfonated poly(amic acid)s (SPAA) to template polymerize 3,4-ethylenedioxythiophene (EDOT) to PEDOT, resulting in an aqueous dispersion of conducting polymer. This study compares PEDOT with poly(aniline) (PANi) and poly(pyrrole) PPy using the same and another, more rigid, poly(amic acid) template. A variety of system parameters, including reaction time, conductivity, and overall thermal stability, were noted to change systematically depending on the systems chosen. PANi-SPAA takes less than one tenth of the reaction time of PEDOT-SPAA (12 h versus 7 days), and results in higher conductivities at room temperature (ca. 10 S/cm). However, it is not as thermally stable as the PEDOT-SPAA system; conductivity is not measureable after annealing at 300 °C. PPy-SPAA was found to be more thermally stable than PANi-SPAA (less mass lost at 300 °C), but it was still more conductive than un-doped PEDOT-SPAA by a factor of 1000 (ca. 1.0 S/cm).
Preparation of the thermally stable conducting polymer PEDOT - Sulfonated poly(imide)
Somboonsub, Bongkoch,Invernale, Michael A.,Thongyai, Supakanok,Praserthdam, Piyasan,Scola, Daniel A.,Sotzing, Gregory A.
, p. 1231 - 1236 (2010)
We describe the template polymerization of EDOT with sulfonated poly(amic acid) (SPAA), resulting in a stable conducting polymer aqueous dispersion, PEDOT-SPAA, with particle size ca. 63?nm. In films of PEDOT-SPAA, the sulfonated poly(amic acid) template undergoes imidization within 10?min at temperatures greater than 150?°C, resulting in PEDOT-sulfonated poly(imide) (PEDOT-SPI) with 10-fold conductivity enhancement. This material is highly thermally stable as compared to PEDOT-PSS. Thermal stability is necessary for many processing applications of conducting polymers, including annealing for OPVs and melt-processing of polycarbonate for device encasement. Isothermal TGA experiments were run at 300?°C for PEDOT-PSS and PEDOT-SPAA and we found that PEDOT-SPAA had a smaller slope for degradation. Annealing of films at 300?°C for 10?min caused the conductivity of PEDOT-PSS films to be unmeasurable (-5?S/cm), while those of PEDOT-SPAA increased 6-fold. Secondary doping of the PEDOT-SPAA system with additives commonly used for PEDOT-PSS was also investigated.
Solvent-free ball-milling subcomponent synthesis of metallosupramolecular complexes
Giri, Chandan,Sahoo, Prasit Kumar,Puttreddy, Rakesh,Rissanen, Kari,Mal, Prasenjit
supporting information, p. 6390 - 6393 (2015/04/22)
Subcomponent self-assembly from components A, B, C, D, and Fe2+ under solvent-free conditions by self-sorting leads to the construction of three structurally different metallosupramolecular iron(II) complexes. Under carefully selected ball-milling conditions, tetranuclear [Fe4(AD2)6]4- 22-component cage 1, dinuclear [Fe2(BD2)3]2- 11-component helicate 2, and 5-component mononuclear [Fe(CD3)]2+ complex 3 were prepared simultaneously in a one-pot reaction from 38 components. Through subcomponent substitution reaction by adding subcomponent B, the [Fe4(AD2)6]4- cage converts quantitatively to the [Fe2(BD2)3]2- helicate, which, in turn, upon addition of subcomponent C, transforms to [Fe(CD3)]2+, following the hierarchical preference based on the thermodynamic stability of the complexes.
COMPOUNDS, COMPOSITIONS, METHODS OF SYNTHESIS, AND METHODS OF TREATMENT
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Page/Page column 33, (2010/12/31)
Embodiments of the present disclosure provide for chloride channel or transporter compounds or compositions (inhibitors or agents), methods of synthesizing these compounds or compositions, methods of treatment using these compounds or compositions, and the like.
