Acidic polymer containing sulfunic acid and carboxylic acid groups heterogenized with natural clay: A novel metal free and heterogeneous catalyst for acid-catalyzed reactions
作者: Samahe SadjadiMaryam AkbariFatemeh Ghoreyshi KahangiMajid M. Heravi
作者单位: 1Gas Conversion Department, Faculty of Petrochemicals, Iran Polymer and Petrochemicals Institute, PO Box 14975-112, Tehran, Iran
2Department of Chemistry, School of Science, Alzahra University, PO Box 1993891176, Vanak, Tehran, Iran
3Department of Chemistry, University Campus 2, University of Guilan, Rasht, Iran
刊名: Polyhedron, 2020, Vol.179
来源数据库: Elsevier Journal
DOI: 10.1016/j.poly.2020.114375
关键词: HalloysitePolymerMetal free catalystKnoevenagel condensationXanthenes
英文摘要: Abstract(#br)A novel metal-free solid acid catalyst, PHSA, has been designed and synthesized through facile and environmentally benign procedure via using halloysite nanoclay as a natural and biocompatible support. The synthetic protocol included co-polymerization of 2-acrylamido-2-methylpropane sulfonic acid and acrylic acid in the presence of vinyl functionalized halloysite. The metal-free solid catalyst that contained both carboxylic acid and sulfonic acid functionality exhibited high catalytic activity for catalyzing both Knoevenagel condensation and Xanthenes synthesis under mild reaction conditions in aqueous media. The presence of halloysite in the structure of PHSA rendered the catalyst heterogeneous and facilitated its recovery and recyclability compared to the halloysite-free...
全文获取路径: Elsevier  (合作)
影响因子:1.813 (2012)

  • catalyst 催化剂
  • carboxylic 类羧酸的
  • catalyzed 催化的
  • heterogeneous 非均匀的
  • condensation 冷凝
  • polymer 聚合物
  • metal 金属
  • containing 包含的
  • natural 自然的
  • novel 长篇小说