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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and Characterization of Secondary Doped Polypyrrole/Organic Modified Attapulgite Conductive Composites
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Synthesis and Characterization of Secondary Doped Polypyrrole/Organic Modified Attapulgite Conductive Composites

机译：二次掺杂聚吡咯/有机改性凹凸棒导电复合材料的合成与表征

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Secondary doping method was introduced into fabricating polypyrrole/oganic modified attapulgite conductive composites. The preparation conditions, such as amount of hexadecylpyridinium chloride (CPC, modifying agent), organic modified attapulgite (OATP), and HCl (secondary dopant) have been optimized to get the composites with the highest conductivity. When m(CPC)/m(ATP), m(OATP)/m(Py), and n(HCl)(SA) (SA is sulfamic acid) reaches 0.03, 0.6, and 0.5, respectively, the PPy/OATP composites possess the highest conductivity of 87.59 S cm(-1) as well as the highest thermal degradation temperature of 249.29 degrees C. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, UV-Visible diffuse reflectance study, and X-ray photoelectron Spectroscopy results showed that PPy chains form the core-shell structure and may combine with OATP via - stacking interaction. Thermogravimetric analysis showed that the thermal stability of PPy/OATP-SH composites was enhanced and these could be attributed to the retardation effect of OATP as barriers for the degradation of PPy. This method may open a new door for PPy-based composites with special structures, higher performance, and thus broader application ranges. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41407.
机译：将二次掺杂方法引入到聚吡咯/有机改性凹凸棒石导电复合材料的制备中。已经优化了制备条件，例如十六烷基吡啶鎓氯化物（CPC，改性剂），有机改性的凹凸棒石（OATP）和HCl（次要掺杂剂）的量，以获得具有最高电导率的复合材料。当m（CPC）/ m（ATP），m（OATP）/ m（Py）和n（HCl）/ n（SA）（SA是氨基磺酸）分别达到0.03、0.6和0.5时，PPy / OATP复合材料具有最高的电导率87.59 S cm（-1）和最高的热降解温度249.29摄氏度。扫描电子显微镜，透射电子显微镜，X射线衍射，傅立叶变换红外光谱，紫外可见漫反射研究和X射线光电子能谱结果表明PPy链形成核-壳结构，并可能通过堆积相互作用与OATP结合。热重分析表明，PPy / OATP-SH复合材料的热稳定性得到了增强，这可以归因于OATP的阻滞作用成为PPy降解的障碍。这种方法可以为具有特殊结构，更高性能，从而更广泛的应用范围的PPy基复合材料打开新的大门。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41407。

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