Superacidic porous polymer catalyst and its application in esterification of carboxylic acid

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• 作者：Eun Joo Park ; Chulsung Bae
• 关键词：Superacid ; Solid acid catalyst ; Esterification ; Mesoporous polymer
• 刊名：Structural Chemistry
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：28
• 期：2
• 页码：493-500
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Computer Applications in Chemistry; Physical Chemistry; Theoretical and Computational Chemistry;
• 出版者：Springer US
• ISSN：1572-9001
• 卷排序：28

文摘

Two solid acid catalysts, SAC1 and SAC2, with porous structure obtained from mesoporous hard template were synthesized and characterized by Fourier transform infrared spectroscopy, acid-base titration, nitrogen adsorption/desorption, scanning electron microscopy, and their catalytic activity in esterification of carboxylic acid. Acid-base titration showed that these catalysts have acidic concentration of 1.02–1.10 mmol/g. The catalytic test in esterification of 6-bromohexanoic acid with methanol showed that SAC1 with perfluorinated sulfonic acid is catalytically more active than SAC2 with aryl sulfonic acid. In spite of lower acid loading, SAC1 showed a comparable catalytic activity with commercially available solid acid catalyst Amberlyst 15 with higher acid capacity (4.80 mmol/g) due to high acidity and well-defined pore structure. SAC1 could be recycled up to three times without significant loss in activity.