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Polypyrrole-modified starch films: structural, thermal, morphological and electrical characterization

机译：聚吡咯改性淀粉膜：结构，热，形态和电学表征

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摘要

Starch films were obtained by incorporating sorbitol and FeCl3.6H2O by casting. The films were exposed to pyrrole vapors to promote polymerization. PPy/starch films were characterized by rheology, elemental analysis, electrical dc conductivity measurements, X-Ray diffraction, thermogravimetry, SEM and FTIR. Optimal synthesis conditions were obtained with starch films containing 5 % w/w of FeCl3.6H2O and 10 h of exposure to pyrrole vapors. The method allowed obtaining smooth, homogeneous films, with electrical conductivity values up to ca. 3.5 x 10-6 S.cm-1. The results suggest that a complex of starch and ferric chloride is formed properties of which are not influenced by the presence of polypyrrole. No chemical interactions were observed between polypyrrole and starch in the film.
机译：通过流延引入山梨糖醇和FeCl3.6H2O获得淀粉薄膜。将膜暴露于吡咯蒸气中以促进聚合。通过流变学，元素分析，直流电导率测量，X射线衍射，热重分析，SEM和FTIR对PPy /淀粉膜进行了表征。用含有5％w / w的FeCl3.6H2O的淀粉膜和暴露于吡咯蒸气的10 h可获得最佳的合成条件。该方法允许获得光滑，均质的膜，其电导率值高达约3。 3.5 x 10-6平方厘米-1。结果表明，形成了淀粉和氯化铁的复合物，其性质不受聚吡咯的存在的影响。膜中的聚吡咯和淀粉之间未观察到化学相互作用。

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