首页> 外文期刊>Journal of the Mechanics and Physics of Solids >Mechanics of responsive polymers via conformationally switchable molecules
【24h】

Mechanics of responsive polymers via conformationally switchable molecules

机译:通过构象可转换分子的响应聚合物力学

获取原文
获取原文并翻译 | 示例
       

摘要

Active materials are those capable of giving some physical reaction under external stimuli coming from the environment such as temperature, pH, light, mechanical stress, etc. Reactive polymeric materials can be obtained through the introduction of switchable molecules in their network, i.e. molecules having two distinct stable conformations: if properly linked to the hosting polymer chains, the switching from one state to the other can promote a mechanical reaction of the material, detectable at the macroscale, and thus enables us to tune the response according to a desired functionality. In the present paper, the main aspects of the mechanical behavior of polymeric materials with embedded switchable molecules—properly linked to the polymer's chains—are presented and discussed. Starting from the micro mechanisms occurring in such active material, a continuum model is developed, providing a straightforward implementation in computational approaches. Finally, some experimental outcomes related to a switchable molecules (known as quinoxaline cavitands) added to an elastomeric PDMS under chemical stimuli, are presented and quantitatively discussed through the use of the developed mechanical framework.
机译:活性物质是那些能够在外界刺激(例如温度,pH,光,机械应力等)的作用下产生某些物理反应的物质。可以通过在其网络中引入可切换分子(即具有两个分子的分子)来获得活性聚合材料。独特的稳定构象:如果正确连接至宿主聚合物链,则从一种状态切换到另一种状态可促进材料的机械反应,这种反应可在宏观范围内检测到,从而使我们能够根据所需功能调整响应。在本文中,提出并讨论了具有嵌入的可切换分子(正确连接到聚合物链)的聚合物材料的力学行为的主要方面。从这种活性材料中发生的微观机制开始,开发了一个连续体模型,提供了计算方法的直接实现。最后,介绍了一些实验结果,这些结果涉及在化学刺激下添加到弹性体PDMS中的可转换分子(称为喹喔啉空泡体),并通过使用已开发的机械框架进行了定量讨论。

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