作为聚合物中的机色光力转子的罗塔克桑
Yoshimitsu Sagara1,2, Marc Karman2, Ester Verde-Sesto2,3
1Research Institute for Electronic Science, Hokkaido University , N20, W10, Kita-Ku, Sapporo 001-0020, Japan.
Journal of the American Chemical Society
|January 23, 2018
概括
新的机械体使用罗塔穿器来应对特定的物质反应. 机械力将组件分开,导致可逆光开启,以精确感应力.
科学领域:
- 材料科学
- 聚合物化学
- 超分子化学
背景情况:
- 通过将机械力转化为化学反应,使机械具有压力依赖的材料特性.
- 传统的机械通常缺乏特异性,因为它们通过键裂变的激活可以由各种刺激触发.
- 这种缺乏特异性限制了它们在精确的机械传感和响应材料中的应用.
研究的目的:
- 为依赖应力材料开发一种特定且可逆的机械孔系统.
- 通过使用机械互锁的分子来克服传统机械体的局限性.
- 创造一种提供与施加机械力直接相关的光学信号的材料.
主要方法:
- 一个机械互锁的机械体,具有罗塔结构,集成到一个聚氨弹性体.
- 机械由一个含有光的宏循环和一个含有火器的形分子组成.
- 聚合物的机械变形导致光体和火器的空间分离.
主要成果:
- 机械应力会在聚合物中触发特定的光.
- 观察到的光反应是有效的,即时可逆,与施加的力直接相关.
- 基于罗塔的系统克服了传统机械的非特异性问题.
结论:
- 机械互锁的分子,特别是罗塔克桑,可以有效地被用作特定的机械体.
- 这种方法可以开发具有可调节,应力响应的光学特性的先进材料.
- 开发的系统提供了一种可靠的实时,可逆的聚合物机械力传感方法.
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