Abstract

A hollow spherical highly hydrophilic polyaniline sulfonic acid catalyst has been successfully prepared by emulsion polymerization and SO₃ liquid sulfonation using modified polystyrene microspheres (PS) as a template. Acid value of the solid acid catalyst is 2.516 mmol/g. Morphology, structure and thermal stability of the catalyst have been studied by XRD, SEM, TEM, FT-IR, X-ray photoelectron spectroscopy (XPS), and TGA. It has been proven that doping and sulfonation of PANI and SO₃ lead to new molecule that retains the PANI matrix material. In view of close structure-activity relationship, it has been applied to the efficient synthesis of bis(indolyl)methanes (BIMs) in water-ethanol phase.

中文翻译：

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高亲水性聚苯胺磺酸的合成，表征与性能

摘要

以改性聚苯乙烯微球（PS）为模板，通过乳液聚合和SO ₃液体磺化成功制备了中空球形高亲水性聚苯胺磺酸催化剂。固体酸催化剂的酸值为2.516mmol / g。通过XRD，SEM，TEM，FT-IR，X射线光电子能谱（XPS）和TGA研究了催化剂的形态，结构和热稳定性。业已证明，PANI和SO _3的掺杂和磺化会产生保留PANI基质材料的新分子。鉴于紧密的结构-活性关系，已将其应用于水-乙醇相中双（吲哚基）甲烷（BIM）的高效合成。