用付氏反应合成聚芳砜,存在着邻位、对位的竞争。这种竞争直接影响聚合物的结构和性能。本文初步研究了聚合条件对聚芳砜<200>的结构和性能的影响。结果表明,在三氯化铁-硝基苯的催化剂-溶剂体系下,反应温度和催化剂浓度对产物的分散性、支化种度以及结晶性能都有很大影响,从而影响聚合物的耐热性及加工性能。关于单体种类对于合成含有联苯键节的聚劳砜的结构和性能的影响,本文也作了初步报导。 Synthesis of polyarylsulfone with Fu’s reaction, there is competition from ortho to para. This competition directly affects the structure and properties of the polymer. In this paper, the effect of polymerization conditions on the structure and properties of polyarylsulfone <200> has been studied preliminarily. The results show that the reaction temperature and the concentration of the catalyst have a great influence on the dispersibility, degree of branching and crystallinity of the product in the catalyst-solvent system of ferric chloride-nitrobenzene, thus affecting the heat resistance of the polymer Sex and processing performance. This article also made a preliminary report on the influence of monomer type on the structure and properties of polybissulfone containing biphenyl bond.