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Synthesis and properties of alternating polymers containing 2,6‐diaryldithienosilole and organosilicon units
Author(s) -
Ohshita Joji,
Nodono Mitsunori,
Takata Atsuhiro,
Kai Hiroyuki,
Adachi Akira,
Sakamaki Koichi,
Okita Koichi,
Kunai Atsutaka
Publication year - 2000
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(20000501)201:8<851::aid-macp851>3.0.co;2-y
Subject(s) - organosilicon , polymer , electroluminescence , polymer chemistry , condensation polymer , reagent , saturated calomel electrode , materials science , chemistry , chemical engineering , electrode , organic chemistry , electrochemistry , working electrode , layer (electronics) , engineering
Nickel‐complex‐catalyzed dehalogenative coupling of diGrignard reagents prepared from bis(bromoaryl)disilanes or monosilane with 2,6‐dibromodithienosiloles afforded the corresponding polymers composed of alternating 2,6‐diaryldithienosilole and organosilicon units. These polymers exhibit strong UV‐vis absorption and emission bands at 422–444 and 482–541 nm, respectively. Their cyclic voltammograms display the first oxidation peaks at 0.95–1.00 V vs. SCE (saturated Calomel electrode). When the polymer films were doped with FeCl 3 vapor, the films became conducting, and their conductivities were determined to be 3.3×10 –5 – 8.7×10 –3 S/cm using the four probe method. Electron‐ and hole‐transporting properties of the polymers were also studied by evaluating the performance of electroluminescent (EL) devices based on these polymers.