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Start Over Author "Schenetti, L." Journal synthetic metals
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3. Spectroscopic comparison between poly[3-(6-methoxyhexyl)thiophene]s with different steric hindrance

Author

F. Bertinelli, Adele Mucci, Paolo Costa-Bizzarri, Luisa Schenetti, Dario Iarossi, Massimiliano Lanzi, Carlo Della-Casa, Costa-Bizzarri P., Della-Casa C., Lanzi M., Bertinelli F., Iarossi D., Mucci A., and Schenetti L.

Subjects
Steric effects, Absorption spectroscopy, solvatochromism, Synthesis, chemistry.chemical_compound, NMR spectroscopy, Ultraviolet visible spectroscopy, Copolymer, Thiophene, Polymer chemistry, Materials Chemistry, Chemistry, Mechanical Engineering, Solvatochromism, poly[3-(6-methoxyhexyl)t-2, 2'-bithiophene], FT-IR spectroscopy, UV-Vis spectroscopy, Metals and Alloys, Nuclear magnetic resonance spectroscopy, Condensed Matter Physics, NMR, Electronic, Optical and Magnetic Materials, Crystallography, Mechanics of Materials, Solvent effects, Chromism
Abstract

An alternating methoxyhexylthiophene–thiophene copolymer was synthesized from 3-(6-methoxyhexyl)-2,2′-bithiophene and studied chiefly by means of optical absorption and nuclear magnetic resonance spectroscopy. The results were compared with those of the previously obtained poly[3-(6-methoxyhexyl)-2,5-thienylene]. The differences in the UV-Vis spectra of the two polymers in pure solvents, solvent/non-solvent mixtures and in films are discussed on the basis of the microstructure and the steric hindrance along the backbone. NMR spectroscopy revealed copolymer configuration to be regiorandom with a slight prevalence of head-to-head and tail-to-tail junctions.

Published
1999
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