采用后合成方法制备出磺酸官能化的介孔坡缕石固体酸PGS-SO3H催化剂,通过红外光谱,X-射线粉末衍射,扫描电镜和热重等对其进行了表征,并在合成偏苯三酸三辛酯的酯化反应中进行催化性能的评价.单因素考察了催化剂用量,酸醇物质的量比,反应温度等因素对酯化反应的影响.实验结果表明:在反应温度210℃,偏苯三酸酐和2-乙基己醇的物质的量比为1∶4.5,催化剂用量为总反应原料质量的4.9％,反应6h酯化率可达96.16％.
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