Title of article
A new π-conjugated star-shaped polymer comprising of full fluorene units: An efficient blue emitter without reduction of color purity undergoing an annealing
Author/Authors
Ren، نويسنده , , Shijie and Cheng، نويسنده , , Jiangong and Zeng، نويسنده , , Danli and Zhu، نويسنده , , Wenqing and Sun، نويسنده , , Jing and Du، نويسنده , , Junping and Xu، نويسنده , , Erjian and Zhong، نويسنده , , Hongliang and Liu، نويسنده , , Yingchun and Fang، نويسنده , , Qiang، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2009
Pages
7
From page
29
To page
35
Abstract
A new star-shaped polymer comprising of full fluorene units was synthesized by Suzuki polycondensation between an A3 type monomer and an AB type monomer. For comparison, a fluorene-based linear polymer was also prepared. The star-shaped polymer was soluble in common organic solvents and gave the number-average molecular weight, Mn, of more than 12,000 and the weight-average molecular weight, Mw, of exceeded 22,000. The polymer showed similar optical behavior both in solution and in the solid state. After an annealing process, the linear fluorene-based polymer showed an additional bathochromic emission at about 550 nm, whereas such red-shifted emission was fully eliminated for the fluorene-based star-shaped polymer. Cyclic voltammetry (CV) measurement of the polymer indicated that the polymer was reversible under p-doping.
Keywords
Fluorene derivatives , ?-Conjugated polymers , Star-shaped polymer , Optical properties , Electrochemical properties
Journal title
Synthetic Metals
Serial Year
2009
Journal title
Synthetic Metals
Record number
2084720
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