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Sulfonic Acid-Functionalized, Hyper-Cross-Linked Porous Polyphenols as Recyclable Solid Acid Catalysts for Esterification and Transesterification Reactions
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-08-20 , DOI: 10.1021/acs.iecr.8b02418 Reddi Mohan Naidu Kalla 1 , Mi-Ra Kim 1 , Il Kim 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-08-20 , DOI: 10.1021/acs.iecr.8b02418 Reddi Mohan Naidu Kalla 1 , Mi-Ra Kim 1 , Il Kim 1
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Easy, safe, and cost-effective hydroxyl-containing microporous hyper-cross-linked polymers based on phenol (pPhOH) and 4,4′-(propane-2,2-diyl)diphenol (or bisphenol A; BPA) were prepared by the Friedel–Crafts alkylation reaction of phenol and bisphenol A using dimethoxymethane as an external cross-linker. The pPhOH and pBPA were functionalized by chlorosulfonic acid to yield corresponding sulfonic acid-functionalized polymers, pPh-SO3H and pBPA-SO3H, respectively, with their surface areas of 210 m2/g and 324 m2/g, respectively. The physicochemical properties of pPh-SO3H and pBPA-SO3H were analyzed by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, Brunauer–Emmett–Teller analysis, and X-ray photoelectron spectroscopy. The pPh-SO3H and pBPA-SO3H polymers show excellent catalytic activity for the esterification of free fatty acids and transesterification of vegetable oils at room temperature, as well as excellent recyclability, signifying the potential of these porous polymers in a wide array of eco-friendly acid-promoted chemical transformations.
中文翻译：
磺酸官能化的超交联多孔多酚作为可回收的固体酸催化剂，用于酯化和酯交换反应
通过以下方法制备基于苯酚（pPhOH）和4,4'-（丙烷-2,2-二基）二酚（或双酚A; BPA）的简单，安全且经济高效的含羟基的微孔超交联聚合物苯酚和双酚A的Friedel-Crafts烷基化反应，使用二甲氧基甲烷作为外部交联剂。用氯磺酸对pPhOH和pBPA进行官能化，分别得到相应的磺酸官能化聚合物pPh-SO 3 H和pBPA-SO 3 H，其表面积分别为210 m 2 / g和324 m 2 / g。 。pPh-SO 3 H和pBPA-SO 3的理化性质通过傅里叶变换红外光谱，X射线衍射，热重分析，扫描电子显微镜，Brunauer-Emmett-Teller分析和X射线光电子能谱分析了H。pPh-SO 3 H和pBPA-SO 3 H聚合物在室温下对游离脂肪酸的酯化和植物油的酯交换反应具有出色的催化活性，并具有出色的可回收性，这表明这些多孔聚合物具有广泛的潜力环保的酸促化学转化
更新日期：2018-08-20
中文翻译：
磺酸官能化的超交联多孔多酚作为可回收的固体酸催化剂，用于酯化和酯交换反应
通过以下方法制备基于苯酚（pPhOH）和4,4'-（丙烷-2,2-二基）二酚（或双酚A; BPA）的简单，安全且经济高效的含羟基的微孔超交联聚合物苯酚和双酚A的Friedel-Crafts烷基化反应，使用二甲氧基甲烷作为外部交联剂。用氯磺酸对pPhOH和pBPA进行官能化，分别得到相应的磺酸官能化聚合物pPh-SO 3 H和pBPA-SO 3 H，其表面积分别为210 m 2 / g和324 m 2 / g。 。pPh-SO 3 H和pBPA-SO 3的理化性质通过傅里叶变换红外光谱，X射线衍射，热重分析，扫描电子显微镜，Brunauer-Emmett-Teller分析和X射线光电子能谱分析了H。pPh-SO 3 H和pBPA-SO 3 H聚合物在室温下对游离脂肪酸的酯化和植物油的酯交换反应具有出色的催化活性，并具有出色的可回收性，这表明这些多孔聚合物具有广泛的潜力环保的酸促化学转化
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