Synthesis, Characterization and Properties of Poly[(3-octanoyl- pyrrole-2,5-diyl)-p-N,N-dimethylaminobenzylidene]

Abstract

Abstract: A novel water-soluble and π-conjugated polymer, poly[(3-octanoylpyrrole-2,5-diyl)-p-N,N-dimethylaminobenzylidene](POPDMABE) containing strong electro donor-acceptor groups, was synthesized by condensation of 3-octanoylpyrrole with para-dimethylaminobenzaldehyde. The chemical structure of POPDMABE was characterized by ¹H NMR, FTIR and UV-Vis spectroscopy. The solubility of POPDMABE in several kinds of solvents was measured. The results show that the POPDMABE can be easily solved in polar solvent and diluted chlorhydric acid. POPDMABE displayed a decrease in mass of about 5% at 210 ℃ in the thermogravimetric apparatus. The crystallinity of POPDMABE was also studied by X-ray diffraction and transmission electron microscope. The results indicate that part of the POPDMABE is in crystal state and the other part is amorphous. The photoluminescence(PL) of POPDMABE was investigated. The result shows that POPDMABE is a good photoluminescence material and blue fluorescence can be observed when the excitation wavelength is 360 nm.

Key words: Poly[(3-octanoylpyrrole-2,5-diyl)-p-N,N-dimethylaminobenzylidene], Synthesis, Structure characterization, Photoluminescence

CLC Number:

O631

TrendMD:

ZHANG Zhi-Gang, WU Hong-Cai, YI Wen-Hui . Synthesis, Characterization and Properties of Poly[(3-octanoyl- pyrrole-2,5-diyl)-p-N,N-dimethylaminobenzylidene][J]. Chem. J. Chinese Universities, 2004, 25(12): 2367.

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Synthesis, Characterization and Properties of Poly[(3-octanoyl- pyrrole-2,5-diyl)-p-N,N-dimethylaminobenzylidene]

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