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Synthesis of ω ‐anthracenyl‐functionalized soluble polyphenylene: effect of the end‐group on optical and electrical properties
Author(s) -
Natori Itaru,
Natori Shizue,
Sasaki Shiori,
Sekikawa Hiroyuki,
Sato Hisaya
Publication year - 2008
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1181
Subject(s) - materials science , photoluminescence , polymer , molecular orbital , homo/lumo , end group , band gap , polymer chemistry , group (periodic table) , absorption (acoustics) , chain (unit) , optoelectronics , organic chemistry , composite material , molecule , chemistry , physics , copolymer , astronomy
ω ‐Anthracenyl‐functionalized soluble polyphenylene (AN‐SPP) with a well‐controlled polymer chain was synthesized. The optical and electrical properties were strongly affected by the anthracenyl end‐group. The UV absorption and photoluminescence emission were enhanced and shifted toward the longer wavelength region in comparison to that of soluble polyphenylene. The optical band gap energies of the main chain and the anthracenyl end‐group were 3.15 and 3.89 eV, respectively. The highest occupied molecular orbital/lowest unoccupied molecular orbital energy levels of the main chain and the anthracenyl end‐group of AN‐SPP were −4.98/−1.81 eV and −7.25/−3.36 eV, respectively. The current–voltage characteristics of AN‐SPP were controllable by the presence of the anthracenyl end‐group. Copyright © 2008 John Wiley & Sons, Ltd.