多重刺激响应变色聚合物材料用于可逆写作和防伪
Yuan-Yuan Lin1,2, Chuan-Jia Jiao1,2, Yong-Gang Qi1
1State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
ACS applied materials & interfaces
|August 2, 2024
概括
新的聚合物材料随着光,触摸和热量而改变颜色. 这一发现使可逆写和安全信息加密等先进应用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 响应刺激的聚合物提供了多样化的应用.
- 螺旋 (SP1) 和螺旋 (STP) 是关键的光色分子.
研究的目的:
- 开发具有多种刺激响应色彩变化的新型聚氨材料.
- 探索使用白光激活用于spirothiopyran的方法.
主要方法:
- 螺旋 (SP1) 和螺旋 (STP) 在聚氨骨架中的共价合并.
- 研究紫外线,白光,机械应力和热量引起的颜色变化.
主要成果:
- 成功合成了具有光色,机色和热色特性的聚氨聚合物.
- 发现特定强度以上的白光 (紫色,蓝色,绿色) 将STP激活为绿色.
- 在响应四种不同的刺激时,实现了可逆的三色变化 (棕色,绿色,紫色).
- 在开发的聚合物材料中表现出高颜色对比度和出色的可逆性.
结论:
- 开发的聚氨材料表现出前所未有的多刺激响应变色能力.
- 新型白光激活STP扩大了对刺激有反应的材料的可能性.
- 这些材料显示出可逆写,防伪和信息加密方面的应用潜力很大.
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