Poly A-vinyl carbazole

Electrochemical doping of insulating polymers has been attempted for polyacetylene, polypyrrole, poly-A/-vinyl carbazole and phthalocyaninato-poly-siloxane. Significantly, Shirota et al. [91] claim to have achieved the first synthesis of electrically conducting poly(vinyl ferrocene) by the method of electrochemical deposition (ECD) [91]. This is based on the insolubilization of doped polymers from a solution of neutral polymers. A typical procedure applied [91] for polyvinyl ferrocene is to dissolve the polymer in dichlorometh-ane and oxidize it anodically with Ag/Ag+ reference electrode under selective conditions. The modified polymer [91] (Fig. 28) is a partially oxidized mixed valence salt containing ferrocene and ferrocenium ion pendant groups with C104 as the counter anion. [Pg.110]

Table 17.3 Some properties of poly(A -vinyl carbazole)...

Figure 9-31. Relationship between the constant Ke of the molar mass relationship [rj] = Ke and the formula molar mass Mu of the monomeric units in polymers of the type (—CH2—CHR—) (O) or (—CH2-CRR —) ( ), PE, poly(ethylene) PVAl, poly(vinyl alcohol) PAN, poly(acrylonitrile) PVC, poly(vinyl chloride) PVPy, poly(2-vinyl pyridine), PVCz, poly(A -vinyl carbazole). The figures give the slope.

At first, diarsenic triselenide was used as the photoconducting material. Poly(A -vinyl carbazole) is now used. This polymer absorbs ultraviolet light, producing an exciton, which ionizes in an electric field. Poly(vinyl carbazole) behaves as an insulator in visible light, but can, however, be sensitized with certain electron donors to form a charge transfer complex. [Pg.491]

Figure 14-2. The relationship between the refractive index d for the sodium D line (589.3 nm) and the Abbe dispersion v for various polymers [see Equation (14-12)]. PVCz, poly(A-vinyl carbazole) P(TFE-HFP), copolymer of tetrafluoroethylene and hexafluoropropylene. For other abbreviations, see Table VII-6, Appendix.

$Figure 14-2. The relationship between the refractive index d for the sodium D line (589.3 nm) and the Abbe dispersion v for various polymers [see Equation (14-12)]. PVCz, poly(A-vinyl carbazole) P(TFE-HFP), copolymer of tetrafluoroethylene and hexafluoropropylene. For other abbreviations, see Table VII-6, Appendix.$

Baibarac M, Lira-Cantu M, Oro Sol J, Baltog I, Casan-Pastor N, Gomez-Romero P. Poly(A-vinyl carbazole) and carbon nanotubes based composites and their application to rechargeable lithium batteries. Compos Sci Tech 2007 67(ll-12) 2556-63. http //dx.doi.org/10.10 16/j.compscitech.2006.12.008. [Pg.33]

Wu HX, Qiu XQ, Cai RE, Qian SX. Poly(A-vinyl carbazole)-grafted multiwalled carbon nanotubes synthesis via direct free radical reaction and optical limiting properties. Appl Surf Sci 2007 253(11) 5122-8. [Pg.33]

Sa ak M. Electrochemical synthesis of poly(A-vinyl carbazole) doped with HSOJ and NOJ anions. J Appl Polym Sci 1999 74 1792-6. [Pg.34]

Chung PS, Holloway PH. Effects of solution processing on the photovoltaic response of poly(A-vinyl carbazole) films. J Appl Polym Sci2010 117(l) 479-85. [Pg.34]

Chen YD, Cheng KT, Liu CK, Fuh AYG. Polarization rotators fabricated by thermally-switched liquid crystal alignments based on rubbed poly(A-vinyl carbazole) films. Opt Express 2011 19(8) 7553. [Pg.35]

Chen YD, Fuh AYG, Liu CK, Cheng KT. Radial liquid crystal alignment based on circular rubbing of a substrate coated with poly(A-vinyl carbazole) film. J Phys D Appl Phys 2011 44(21). [Pg.35]

Chen YD, Fuh AYG, Cheng KT. Particular thermally induced phase separation of liquid crystal and poly(A-vinyl carbazole) films and its application. Opt Express 2012 20(15) 16777. [Pg.35]

Tsutsumi N, Dohi A, Nonomura A, Sakai W. Enhanced performance of photorefractive poly(A-vinyl carbazole) composites. J Polym Sci Part B Polym Phys 2011 49(6) 414-20. [Pg.35]

Tsutsumi N, Kinashi K, Nonomura A, Sakai W. Quickly updatable hologram images using poly(A-vinyl carbazole) (PVCz) photorefractive polymer composite. Materials 2012 5(12) 1477-86. [Pg.35]

Dridi C, Barlier V, Chaabane H, Davenas J, Ben Ouada H. Investigation of exciton photodissociation, charge transport and photovoltaic response of poly(A-vinyl carbazole) f/02 nanocomposites for solar cell applications. Nanotechnology 2008 19(37) 375201. [Pg.41]

Gokgeoren AT, Erbil C. Morphological characterization and electrochemical/electrical properties of poly(A-vinyl carbazole)/montmorillo-... [Pg.42]

Jiang F, Ren F, Zhou W, Du Y, Xu J, Yang P, et al. Free-standing poly[poly(A-vinyl carbazole)]-supported pt-based catalysts with enhanced performance for methanol electro-oxidation in alkaUne medium. Fuel 2012 102 560-6. [Pg.42]

Fibres of poly(A-vinyl carbazole)with a high modulus have been prepared by melt extrusion. They have a highly ordered one dimensional rod-like morphology with a hexagonal unit cell, a = b = c— 1.23 nm. [Pg.218]

Photoactive films are formed by dispersing them in different glassy solids and studied for diode applications [70]. These compounds dispersed in polystyrene [227], poly A -vinyl carbazole or polyimides [141,142] show stable electrochromic redox properties in the absence of redox couples in an electrolyte. The electrochemical activity is found to depend on the type of the polymers, the amount of phthalocyanine, the layer thickness and the conditions of film preparation. Photovoltaic cells using Schottky junctions have been... [Pg.764]

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