Kim, IT Lee, SW Kim, SY Park, GB Lee, SH Kang, SK Kang, JG Park, CM Jin, SH 2024-01-21T03:41:18Z 2024-01-21T03:41:18Z 2021-09-02 2006-01-05 0379-6779 https://pubs.kist.re.kr/handle/201004/135820 Stille coupling reaction of 4,8-dibromo-2,6-dihexyl-benzo[1,2-d:4,5-d']bisthiazole and 2,5-bis(trimethylstannyl)thiophene afford a new conjugated conducting copolymer 1. The polymer was completely soluble in common organic solvents. The electrical conductivity of the polymer is at about 3.8x10(-1) S/cm. The UV-vis spectra of the polymer in a chloroform solution and in a spin-cast film on a piece of glass show pi-pi* absorption bands (lambda(max)) of 460 nm and 538 nm, respectively. The 78 nm red shift of the lambda(max) of the polymer in the film, in comparison to that observed for the polymer in chloroform, possibly indicates much more planarization and aggregates formation due to the pi electron stacking in terms of inter-chain characteristics in the solid state. The structure of the polymer has been compared with that of compound 3 as model compound. Rationalizations are presented for optical properties of the polymer in relation to polymer structure. (C) 2005 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA POLY(PARA-PHENYLENE) Synthesis, characterization, and properties of a new thiophene-benzobisthiazole copolymer Article 10.1016/j.synthmet.2005.10.002 1 SYNTHETIC METALS, v.156, no.1, pp.38 - 41 SYNTHETIC METALS 156 1 38 41 scie scopus 000235670900006 2-s2.0-31944435542 Materials Science, Multidisciplinary Physics, Condensed Matter Polymer Science Materials Science Physics Polymer Science Article POLY(PARA-PHENYLENE) copolymer electric properties bisthiazole conductivity luminance