...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Pyrene-Based Porous Organic Polymers as Efficient Catalytic Support for the Synthesis of Biodiesels at Room Temperature
【24h】

Pyrene-Based Porous Organic Polymers as Efficient Catalytic Support for the Synthesis of Biodiesels at Room Temperature

机译：Room基多孔有机聚合物作为室温下生物柴油合成的高效催化载体

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

New pyrene-based microporous organic polymers PPOP-1, PPOP-2, and PPOP-3 have been synthesized via Friedel-Crafts alkylation reaction between pyrene and bis(1,4-dibromomethyl)benzene at their different molar ratios in the presence of a Lewis acid catalyst FeCl3 under refluxing conditions. Pore surfaces of PPOP-1, PPOP-2, and PPOP-3 have been functionalized by -SO3H groups via chlorosulfonic acid treatment under controlled reaction conditions to obtain sulfonated porous organic polymers, and these are designated as SPPOP-1, SPPOP-2, and SPPOP-3, respectively. Powder X-ray diffraction, N2 sorption, HR-TEM, FE-SEM, NH3-TPD, solid state ~(13)C CP MAS-NMR, and FT-IR spectroscopic tools are employed to characterize these materials. These sulfonated porous polymers showed nanofiber-like or spherical morphology, very high surface acidity, and excellent catalytic activity for the synthesis of biodiesels via esterification/transesterification of long chain fatty acids/esters at room temperature together with very high recycling efficiency, suggesting the future potential of these sulfonated porous polymers in a wide range of sustainable acid-catalyzed chemical reactions.
机译：新型pyr基微孔有机聚合物PPOP-1，PPOP-2和PPOP-3是通过Fried与双（1,4-二溴甲基）苯在不同摩尔比下的Friedel-Crafts烷基化反应合成的。路易斯酸催化剂FeCl 3在回流条件下。在控制的反应条件下，通过氯磺酸处理，通过-SO3H基团将PPOP-1，PPOP-2和PPOP-3的孔表面官能化，从而得到磺化的多孔有机聚合物，它们分别称为SPPOP-1，SPPOP-2，和SPPOP-3。粉末X射线衍射，N2吸附，HR-TEM，FE-SEM，NH3-TPD，固态〜（13）C CP MAS-NMR和FT-IR光谱工具用于表征这些材料。这些磺化的多孔聚合物表现出纳米纤维状或球形的形态，非常高的表面酸度，并且通过长链脂肪酸/酯在室温下的酯化/酯交换反应，具有极高的催化活性，可用于合成生物柴油，具有很高的回收利用率，表明了未来这些磺化多孔聚合物在各种可持续的酸催化化学反应中的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号