二氧化碳触发和控制直角多响应的光色系统
Tamim A Darwish1, Richard A Evans, Michael James
1Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia. tamim.darwish@ansto.gov.au
Journal of the American Chemical Society
|August 5, 2010
概括
一种新方法使用二氧化碳 (CO2) 来可逆控制螺旋光色. 用胺敏化剂添加或去除CO2将光色效应打开或关闭,从而实现新的应用.
科学领域:
- 有机化学 有机化学
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
背景情况:
- 螺旋是光色化合物,在暴露于光线时颜色发生变化.
- 在先进的材料应用中,可逆控制光色是非常重要的.
- 控制螺旋光色的现有方法可能是有限的.
研究的目的:
- 开发一种新的,通用方法,用于可逆控制螺旋光色.
- 调查二氧化碳 (CO) 和胺敏感剂在调节光色行为中的作用.
- 为了使基于spiropyran的材料能够对CO2有反应的应用.
主要方法:
- 在酒精溶液中使用spiropyrans与阿米丁 (DBU) 作为CO2敏感剂.
- 应用和去除二氧化碳 (CO2) 的解决方案,以切换光色.
- 使用惰性气体泡来去除CO2并关闭光色效应.
- 测试CO2 / DBU对其他光色染料类 (螺旋,) 的影响.
主要成果:
- 当使用阿米丁敏化剂时,螺旋呈现可逆光色,由CO的存在或不存在控制.
- 光色效应通过添加CO2而被激活,通过去除CO2而被禁用.
- 这种CO2 / DBU刺激特别影响螺旋,而不是螺旋或.
- 螺旋和螺旋胺混合物的正交激活产生了四种不同的颜色状态.
结论:
- 已经建立了一种新的,通用的方法,用于可逆CO2控制的螺旋的光色学.
- 这种CO(2) /DBU系统提供了一种简单的方法来激活和关闭光色特性.
- 该方法的选择性允许在混合染料系统中进行直角控制,从而扩大了应用可能性.
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