PHOTOPHYSICAL STUDY OF SULFONATED POLYSTYRENE |
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| Authors: | Zhang Jixiang LI Hexian WANG Guochang WANG Yuexi HE Binglin |
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| Institution: | State Key Laboratory of Functional Polymer Materials For Adsorption and Separation Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China |
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| Abstract: | The photophysical properties of a series of sulfonated micromolecule (paratoluenesulfonic acid, HPTS) and macromolecules (linear and crosslinked polystyrene) have been studied by steady-state fluorescence spectra. The results indicate that the ground sulfonated ring associations can form in both the micromolecules and the macromolecules. The fluorescence spectra of the sulfonated crosslinked copolymers appear a red-shift when the copolymers change from hydrogen-type to sodium-type, and some new emission bands appear in the long-wavelength region. These results are explained in terms of synergetic effect of hydrogen bond, π-π interaction and crosslinking effect. |
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| Keywords: | photophysics Fluorescence Ground sulfonated ring association |
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