Poly(diphenylacetylene)s with Electron-Donating Alkoxy and Electron-Withdrawing Fluoroalkyl Groups: Effect of the Substituent on Fluorescence

✍ Scribed by Giseop Kwak; Hong-Qing Wang; Kyu-Han Choi; Kyu-Ho Song; Soon-Hak Kim; Hyeok-Soo Kim; Sam-Jong Lee; Ho-Young Cho; Eon-Ju Yu; Hyo-Jeong Lee; Eun-Jung Park; Lee-Soon Park

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 163 KB
• Volume: 28
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200700208

✦ Synopsis

Abstract

New poly(diphenylacetylene)s with alkoxy and fluoroalkyl groups as electron‐donating and electron‐withdrawing groups, respectively, were synthesized by using a WCl~6~‐n‐Ph~4~Sn catalyst. The polymer solutions emitted strong, bluish‐green lights when photo‐excited. The polymers that contained the electron‐donating alkoxy groups showed longer fluorescence‐maximum peaks when compared to the polymers that contained the electron‐withdrawing fluoroalkyl groups. However, such an effect of the substituent on the absorption property was not clearly seen. The emission bands of the solid films did not show any significant red shift, relative to that of the dilute solution.

magnified image