Abstract

The results of the creation of an electrically conductive layer of polyaniline (PANI) on the surface of a polyethylene (PE) film modified by postradiation chemical grafting polymerization of styrene followed by the sulfonation of the grafted polystyrene (PS) chains are presented in this work. The distribution of sulfonated PS through the thickness of the PE film when varying both the degree of grafting of PS and degree of sulfonation of the latter is studied. It is shown that two types of films can be obtained using the specified procedure, namely, surface and bulk sulfonated. The synthesis of PANI in the obtained films was conducted by the oxidative polymerization of aniline. It is shown that the synthesis of PANI in most composite films has an autocatalytic character similar to the synthesis in the medium of polymeric acids. The studies of these PANI-containing films by FTIR spectroscopy and atomic force microscopy and measurements of their surface conductivity show that only the layers formed on the bulk sulfonated films to the full extent possess the properties inherent to PANI. The minimum of the achieved values of sheet resistance (17 MΩ/sq) gives evidence of the possibilities of this method for the formation of film materials containing PANI in the surface layers.

中文翻译：

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接枝磺化聚苯乙烯聚乙烯薄膜中聚苯胺的合成及其性能

摘要

在这项工作中介绍了在聚乙烯（PE）薄膜表面上创建聚苯胺（PANI）导电层的结果，该聚乙烯层通过苯乙烯的后辐射化学接枝聚合反应改性，然后将接枝的聚苯乙烯（PS）链磺化。研究了同时改变PS的接枝度和后者的磺化度时，磺化PS在PE膜厚度上的分布。结果表明，使用指定的方法可以得到两种类型的薄膜，即表面磺化和本体磺化。通过苯胺的氧化聚合在所得膜中合成PANI。结果表明，大多数复合膜中PANI的合成具有类似于在聚合酸介质中合成的自催化特性。通过FTIR光谱和原子力显微镜对这些含PANI的膜的研究以及它们的表面电导率的测量表明，仅在块状磺化膜上形成的层完全具有PANI固有的性能。薄层电阻达到的最小值（17MΩ/ sq）证明了这种方法在表面层中形成含PANI的薄膜材料的可能性。