采用离子交换法制备了ZnCl2改性的阳离子交换树脂催化剂,考察了ZnCl2浓度、离子交换时间和溶剂等对催化剂催化乙酸和乙醇微波酯化反应性能的影响,结果表明,以去离子水为溶剂,以0.15%ZnCl2溶液进行离子交换30h,所得催化剂的性能较好,采用酸碱滴定法、紫外-可见光谱、傅里叶变换红外光谱、扫描电镜和N2吸附脱附等手段对催化剂进行了表征.结果表明,改性后的催化剂H+交换量约为原来的1.5倍,表面酸强度增加;树脂骨架结构变化不大;紫外吸收峰发生蓝移,吸收强度减小:比表面积略有减小;催化剂在含水体系中表现出较高的催化活性,且重复使用性能大大提高.
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