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通过弗里德尔—克拉夫茨反应制备了三种聚次芳基硫醚即聚次苯基硫醚、聚氧化二次苯基硫醚和聚氯代次苯基硫醚。经分析具有下列单元结构: 利用热机械曲线、X—射线衍射和核磁共振法测定其结晶性;由热失重分析表明它们具有较高的热稳定性:比容-温度关系测定其玻璃化温度;由冲击法测定这三种聚合物的磁导率均大于1,表明它们具有顺磁特性。
Three kinds of polyarylsulfides, namely polythiophenylene sulfide, polyoxydiphenyl sulfide and polychlorothiophenyl sulfide, were prepared by Friedel-Crafts reaction. The following unit structures were analyzed: Their crystallinity was determined by thermomechanical, X-ray diffraction and nuclear magnetic resonance methods; their thermogravimetric analysis showed that they had high thermal stability: their glass transition temperatures were determined by their specific volume-temperature relationship; The permeability of all three polymers, as determined by the impact method, is greater than 1, indicating their paramagnetic properties.