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首页> 外文期刊>Macromolecular Research >Structure and properties of conducting poly(o-phenylenediamine) synthesized in different inorganic acid medium
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Structure and properties of conducting poly(o-phenylenediamine) synthesized in different inorganic acid medium

机译：在不同无机酸介质中合成的导电聚邻苯二胺的结构与性能

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摘要

Poly(o-phenylenediamine) was chemically synthesized from the monomer o-phenylenediamine in various inorganic acid medium, viz., hydrochloric (HCl), sulphuric (H2SO4) and phosphoric acid (H3PO4) to investigate the differences in structures and properties of the synthesized polymers. From the various characterizations, it was confirmed that the ladder type polymer with some open ring structure was formed in HCl medium while open ring type amine derivative of polyaniline structure was obtained in H2SO4 medium and the ladder type dimer was formed in H3PO4 medium. The structural differences of the polymers were correlated with the polymerization mechanism in different acid medium. Thus, the polymer synthesized in H2SO4 was well soluble in polar organic solvent like dimethyl sulfoxide (DMSO), N,N-dimethyl formamide, tetrahydrofuran etc. and casting of freestanding film was possible from DMSO solution. The highest average DC conductivity of H2SO4 doped polymer synthesized in H2SO4 medium was observed as 7.14x10(-4) S/cm. The conductivity and doping properties of the polymer were explained here from the proper characterizations.
机译：在多种无机酸介质中，即盐酸（HCl），硫酸（H2SO4）和磷酸（H3PO4）中，由邻邻苯二胺单体化学合成聚邻邻苯二胺，以研究其结构和性能的差异。聚合物。从各种特征可以确认，在HCl介质中形成了具有一些开环结构的梯形聚合物，而在H 2 SO 4介质中获得了聚苯胺结构的开环型胺衍生物，并且在H 3 PO 4介质中形成了梯形二聚体。聚合物的结构差异与在不同酸性介质中的聚合机理有关。因此，在H2SO4中合成的聚合物可很好地溶于极性有机溶剂，如二甲基亚砜（DMSO），N，N-二甲基甲酰胺，四氢呋喃等，并且可以从DMSO溶液中浇铸独立膜。在H2SO4介质中合成的H2SO4掺杂的聚合物的最高平均DC电导率为7.14x10（-4）S / cm。在此通过适当的表征来解释聚合物的电导率和掺杂特性。

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