在光活性聚合物薄膜中制造波
Anne Helene Gelebart1,2, Dirk Jan Mulder1, Michael Varga3
1Department of Chemical Engineering and Chemistry, Laboratory for Functional Organic Materials and Devices (SFD), Eindhoven University of Technology, Eindhoven, The Netherlands.
Nature
|June 29, 2017
概括
研究人员开发了光活性聚合物薄膜, 这些可适应的材料对机器人,医药和能源采集应用具有前景.
科学领域:
- 材料科学
- 聚合物化学
- 软机器人
背景情况:
- 随着刺激而改变形状的振荡材料是先进机器人和医学的关键.
- 液晶网络 (LCN) 可以被编程为刺激诱导的变形,通常使用光.
- 在LCN中,亚烯分子能够产生光反应,但通常表现为缓慢放松和仅曲的反应.
研究的目的:
- 设计能够产生宏观机械波的光活性聚合物薄膜.
- 调查改性亚博衍生物用于增强光机性能.
- 在恒定的照明下探索自影反循环.
主要方法:
- 将快速放松的亚博衍生物纳入液晶网络.
- 使用恒定的光照来诱导形状变化和波浪产生.
- 开发理论模型和数值模拟以了解波浪生成机制.
- 理论模型和模拟的实验验证.
主要成果:
- 已经成功生成了呈现连续,定向,宏观机械波的光活性聚合物薄膜.
- 一个由光驱动的自影反循环被确定为波产生机制.
- 理论模型和数值模拟显示了与实验结果的良好的定性一致.
- 在光驱动的机动和自洁表面中展示了潜在的应用.
结论:
- 在LCN中修改的亚博衍生物可以产生动态的,产生波的材料.
- 自影机制为连续光机械操作提供了一种新的途径.
- 这些材料在能源采集,机器人技术和小型化运输方面具有显著的潜力.
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