【摘要】 采用“一锅法”以氯化锌为催化剂合成了超高交联聚苯乙烯。测定了超高交联聚苯乙烯对环己烷中苯酚的吸附等温曲线,利用热力学函数关系计算出了吸附焓、吸附自由能和吸附熵,比较了超高交联聚苯乙烯对苯酚和苯甲醚吸附性能的差别,推测吸附过程的主要作用为氢键作用。以小分子化合物为模型,通过分子间相互作用能的计算,论证了树脂是通过其羰基氧原子与苯酚的羟基氢原子之间的氢键作用而吸附苯酚的。更多还原

【Abstract】 Hypercrosslinked polystyrene was synthesized via a 搊ne-pot method?under the catalysis of zinc chloride. Adsorption isotherms of phenol from cyclohexane solution were measured. Values of adsorption enthalpy, adsorption Gibbs free energy and adsorption entropy were calculated. Difference of adsorption property for phenol and phenyl methyl ether from cyclohexane solution was investigated. The results implied that adsorption of phenol onto hypercrosslinked polystyrene from cyclohexane is mainly based on hydrogen bonding. Calculation results of intermolecular interaction energies of small molecular model compounds indicated that phenol was adsorbed through hydrogen bonding between the carbonyl oxygen atom of the resin and the hydroxyl hydrogen atom of phenol.更多还原