• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemistry: A European journal >Gel sculpture: Moldable, load-bearing and self-healing non-polymeric supramolecular gel derived from a simple organic salt
【24h】

Gel sculpture: Moldable, load-bearing and self-healing non-polymeric supramolecular gel derived from a simple organic salt

机译：凝胶雕塑：由简单的有机盐衍生而来的可塑，承重和自修复的非聚合物超分子凝胶

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

An easy access to a library of simple organic salts derived from tert-butoxycarbonyl (Boc)-protected L-amino acids and two secondary amines (dicyclohexyl- and dibenzyl amine) are synthesized following a supramolecular synthon rationale to generate a new series of low molecular weight gelators (LMWGs). Out of the 12 salts that we prepared, the nitrobenzene gel of dicyclohexylammonium Boc-glycinate (GLY.1) displayed remarkable load-bearing, moldable and self-healing properties. These remarkable properties displayed by GLY.1 and the inability to display such properties by its dibenzylammonium counterpart (GLY.2) were explained using microscopic and rheological data. Single crystal structures of eight salts displayed the presence of a 1D hydrogen-bonded network (HBN) that is believed to be important in gelation. Powder X-ray diffraction in combination with the single crystal X-ray structure of GLY.1 clearly established the presence of a 1D hydrogen-bonded network in the xerogel of the nitrobenzene gel of GLY.1. The fact that such remarkable properties arising from an easily accessible (salt formation) small molecule are due to supramolecular (non-covalent) interactions is quite intriguing and such easily synthesizable materials may be useful in stress-bearing and other applications.
机译：根据超分子合成子原理，可以轻松访问由叔丁氧羰基（Boc）保护的L-氨基酸和两个仲胺（二环己基和二苄基胺）衍生的简单有机盐库，从而生成一系列新的低分子重量胶凝剂（LMWG）。在我们制备的12种盐中，双环己基Boc-甘氨酸盐（GLY.1）的硝基苯凝胶表现出了显着的承重，可模塑和自愈特性。使用显微镜和流变学数据解释了GLY.1显示的这些显着特性，以及其二苄基铵对应物（GLY.2）无法显示这些特性。八种盐的单晶结构显示出一维氢键网络（HBN）的存在，该网络被认为在凝胶化中很重要。粉末X射线衍射结合GLY.1的单晶X射线结构清楚地确定了GLY.1硝基苯凝胶的干凝胶中存在一维氢键网络。这种由易于接近（形成盐）的小分子产生的显着特性是由于超分子（非共价）相互作用而引起的，这一事实非常令人着迷，这种易于合成的材料可用于承受应力和其他应用。

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