• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemistry: A European journal >Ion-conduction pathways in self-organised ureidoarene-heteropolysiloxane hybrid membranes
【24h】

Ion-conduction pathways in self-organised ureidoarene-heteropolysiloxane hybrid membranes

机译：自组织脲基芳烃-杂聚硅氧烷杂化膜中的离子传导途径

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

This paper reports on hybrid organic-inorganic dense membrane materials in which protons and ions are envisioned to diffuse along the hydrophilic pathways. The hierarchical generation of functional hybrid materials was realised in two steps. First, the self-assembling properties of 3-(ureidoarene)propyltriethoxysilane compounds 1-5 in aprotic solvents were determined, revealing the formation of supramolecular oligomers. Compounds 1-5 generate organogels in chloroform or in ace-tone, leading in a second sol-gel transcription step to hybrid membrane materials on a nanoscopic scale. The crystal structures of 1-5 indicate that the arrangement is mainly defined by periodic parallel sheets, resulting from the alignment of hydrophobic organic and inorganic silica layers. Hybrid materials MB1-MB4, with a similar lamellar structure, define particularly attractive functional transport devices; they are oriented along the organic layers and sandwiched between the two siloxane layers. These systems have been employed successfully to design solid dense membranes and illustrate how the self-organised hybrid materials perform interesting and potentially useful functions.
机译：本文报道了混合的有机-无机致密膜材料，其中质子和离子被设想沿着亲水途径扩散。功能性杂化材料的分层生成通过两个步骤实现。首先，测定了3-（脲基亚芳基）丙基三乙氧基硅烷化合物1-5在非质子溶剂中的自组装性质，揭示了超分子低聚物的形成。化合物1-5生成氯仿或乙酰基的有机凝胶，从而导致第二个溶胶-凝胶转录步骤，以纳米尺度混合膜材料。 1-5的晶体结构表明该排列主要由周期性的平行片限定，这是由于疏水性有机和无机二氧化硅层的排列而引起的。具有类似层状结构的混合材料MB1-MB4定义了特别吸引人的功能性运输设备;它们沿着有机层取向并夹在两个硅氧烷层之间。这些系统已成功用于设计固体致密膜，并说明了自组织杂化材料如何执行有趣且潜在有用的功能。

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