Isolation of π??conjugated system through polyfluorene from electronic coupling with side??chain substituents by cardo structures

H Yeo, K Tanaka, Y Chujo

Index: Yeo, Hyeonuk; Tanaka, Kazuo; Chujo, Yoshiki Journal of Polymer Science, Part A: Polymer Chemistry, 2012 , vol. 50, # 21 p. 4433 - 4442,10

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Citation Number: 14

Abstract

Abstract The electronic coupling via the cardo structure in polyfluorene (PFs) was investigated. The series of fluorene units alternatively having alkoxyphenyl as an electron- donating group (EDG) and/or alkyl benzoate as an electron-withdrawing group (EWG) at the cardo carbon were synthesized. From the investigation of optical properties of the polymers containing these fluorene units, it was found that the electronic states of the substituents at ...