Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1401394 | European Polymer Journal | 2006 | 6 Pages |
Abstract
We systematically studied the excitation and the fluorescence steady-state spectroscopy of poly[2-methoxy-5-(2′-ethylhexoxy)-p-phenylene vinylene] (MEH-PPV) in two solvents and several concentrations. Fluorescence spectra were recorded for solutions in several concentrations (10−5 mg/ml to 10−3 mg/ml), showing that tetrahydrofuran (THF) and toluene solvate the polymer chain differently. Dilute solution (10−5 mg/ml) in THF exhibit broader fluorescence spectra due to greater conformation disorder. The degree of the aggregation depends on both the solvent and the polymer concentration. Aggregation is promoted in toluene solution and hindered in THF solvent.
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Authors
Shanyu Quan, Feng Teng, Zheng Xu, Lei Qian, Yanbin Hou, Yongsheng Wang, Xurong Xu,