𝔖 Bobbio Scriptorium
✦   LIBER   ✦

π-Conjugated Polymers Consisting of 9,10-Dihydrophenanthrene Units

✍ Scribed by Takakazu Yamamoto; Ryouichi Tokimitsu; Takahiro Asao; Takayuki Iijima; Hiroki Fukumoto; Take-aki Koizumi; Takashi Fukuda; Hirobumi Ushijima

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
847 KB
Volume
212
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

π‐Conjugated polymers consisting of 9,10‐disubstituted 9,10‐dihydrophenenthrene, with the substituents octyl, 2‐ethylhexyl, ‐OSiBu~3~, etc., units are prepared by organometallic polycondensation. Homopolymers (PH~2~Ph(9,10‐R)) have a π‐conjugation system similar to that of polymers of 9,9‐dialkylfluorene and show UV‐Vis peaks at ≈380 nm. In addition to the peak at ≈380 nm, some homopolymers give rise to a peak at a longer wavelength, suggesting molecular assembly of the polymers. X‐ray diffraction data support the molecular assembly. The homopolymers show photoluminescence (PL) with PL peaks at ≈430 nm, and PL spectrum of the polymer film is essentially unchanged after heating the polymer film at 150 °C in air. The homopolymers undergo electrochemical p‐doping at about 1.5 V versus Ag^+^/Ag.

📜 SIMILAR VOLUMES

π-Conjugated Polymers Consisting of Isot
π-Conjugated Polymers Consisting of Isothianaphthene and Dialkoxy-p-phenylene Units: Synthesis, Self-Assembly, and Chemical and Physical Properties
✍ Takakazu Yamamoto; Motoaki Usui; Haruki Ootsuka; Takayuki Iijima; Hiroki Fukumot 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 629 KB

## Abstract A series of π‐conjugated alternating copolymers consisting of Th‐ITN‐Th and __p__‐C~6~H~2~(OR)~2~ units were synthesized. XRD indicated that the copolymers assume an interdigitation packing mode, and UV‐Vis spectra revealed a strong tendency for self‐assembly. Upon molecular assembly of