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本文采用溶液浸溃法,将HBF4固载于磺酸树脂上首次合成了Brnsted酸/磺酸树脂型聚合物超强酸DSFB。用溶剂对湿态DSFB回流脱水可以制备出合酸量较高的干态复合树脂。通过对DSFB进行溶剂脱附和加热脱附研究,证明此复合物十分稳定。对照实验表明,此复合物中HBF4不与苯环而是与磺酸基可能通过氢键形成复合作用。本文还提出了此复合物的结构模型。
In this paper, Brnsted acid / sulfonic acid-based polymer superacid DSFB was synthesized for the first time by impregnation method with HBF4 immobilized on sulfonic acid resin. With the solvent wet DSFB reflux dehydration can be prepared with high acid content of dry composite resin. By DSFB solvent desorption and thermal desorption studies have shown that the complex is very stable. Control experiments show that this complex HBF4 not benzene ring but with the sulfonic acid group may form a complex role of hydrogen bonds. This paper also proposed the structural model of this complex.