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Synthesis and chemical properties of photoluminescent self-doped polyanilines

机译:自发光聚苯胺的合成及化学性质

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Fluorescent self-doped polyanilines (PAS-AntPy-a and PAS-AntPy-b) were obtained by the pyridinium sulfonation of poly(2-methoxyaniline-5-sulfonic acid) (PAS) with 4-(2-anthracene-9-yl-vinyl)pyridine (AntPy). The degrees of pyridinium sulfonation in PAS-AntPy-a and PAS-AntPy-b were 0.70 and 0.97, respectively. A neutral polyaniline with an AntPy side unit (PANI-AntPy) was synthesized by the oxidative polymerization of N-(2-aminophenyl)-4-(2-anthracene-9-yl-vinyl)pyridinium chloride. The UV-vis spectra of PAS-AntPy-a and PAS-AntPy-b exhibited an absorption due to the polaron band that was derived from the protonation of amine groups in the polyaniline backbone with the remaining sulfonic acid proton. In contrast, PANI-AntPy did not exhibit absorption due to the polaron band. PAS-AntPy-a, PAS-AntPy-b, and PANI-AntPy were photoluminescent in a solution. The electric conductivity of PAS-AntPy-a was sigma = 1.5 x 10(-7) S cm(-1), which was higher than that of H2SO4 doped PANI (4.2 x 10(-9) S cm(-1)) reported previously.
机译:荧光自掺杂聚苯胺(PAS-AntPy-a和PAS-AntPy-b)是通过4-(2-蒽-9-基)对聚(2-甲氧基苯胺-5-磺酸)(PAS)进行吡啶鎓磺化而获得的。 -乙烯基)吡啶(AntPy)。 PAS-AntPy-a和PAS-AntPy-b中吡啶鎓磺化度分别为0.70和0.97。通过N-(2-氨基苯基)-4-(2-蒽-9-乙烯基-乙烯基)吡啶鎓氯化物的氧化聚合合成具有AntPy侧单元的中性聚苯胺(PANI-AntPy)。 PAS-AntPy-a和PAS-AntPy-b的UV-vis光谱表现出吸收,这是由于极化子带所引起的吸收,极化子带是由聚苯胺主链中的胺基与剩余的磺酸质子质子化而得到的。相反,由于极化子带,PANI-AntPy没有表现出吸收。 PAS-AntPy-a,PAS-AntPy-b和PANI-AntPy在溶液中呈光致发光。 PAS-AntPy-a的电导率为sigma = 1.5 x 10(-7)S cm(-1),高于H2SO4掺杂的PANI(4.2 x 10(-9)S cm(-1))。以前报道过。

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