氯甲基化苯乙烯-二乙烯苯共聚体傅氏交联反应的研究

氯甲基化苯乙烯-二乙烯苯共聚体在傅氏催化剂的存在下可以发生自身的傅氏交联反应从而制得一类新型吸附树脂,它们的物理化学性质和红外光谱分析证实了这类吸附树脂的结构。溶剂的性质,催化剂的种类和用量、反应温度和时间都对反应有明显的影响。这类吸附树脂具有比表面积高(1000—1300m~2/g)、孔度较大、孔分布较窄、比重大和机械强度高等特点。

INVESTIGYTION OF THE FRIEDEL-CRAFTS REACTION OF THE CHLOROMETHYLATED COPOLYMER OF ST YRENE-DI VIN YLBENZEN E

In the presence of Friedel Crafts' catalysts the chloromethylated copolymer of styrene-di-vinylbenzene may react with each other and form crosslinking by itself. Thus, there is obtained a new type of polymeric adsorbent, the structure of which is identified by its physical properties and infrared spectra. The Friedel-Crafts reaction is manifestly affected by the nature of the solvent, the kind and amount of catalyst, reaction temperature, length of reaction time etc. The structure of the holes and the physical properties of the adsorbent were deter-mined systematically. The properties of the adsorbent made domestically,made abroad and also of the carbonized polymers were compared. It indicates that the adsorbent reported here pos-sesses high specific surface area (1000-1300m²/g),high porosity,narrow pore distribution,high skeleton density and good mechanical property.