一个简单的单步转换生物基马格诺洛尔 (Honokiol) 到高折射性材料
Zongao Dou1, Jing Sun1, Qiang Fang1
1Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
Biomacromolecules
|August 7, 2024
概括
新的生物基聚合物为光学镜片和紫外线涂层提供高折射率和高Abbe数. 它们的高效合成和优良的光学特性使得它们非常适合工业应用.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 光电学是指光电子产品.
背景情况:
- 开发先进的光学材料对于下一代光学设备至关重要.
- 生物基单体为聚合物合成提供了可持续的替代品.
- 同时实现高折射率和高Abbe数仍然是一个挑战.
研究的目的:
- 使用生物基单体合成具有高折射率和高Abbe数的新型聚合物.
- 评估合成聚合物的光学和热性质.
- 探索在光学镜片和抗紫外线涂料中的潜在应用.
主要方法:
- 用于聚合物合成的光点击醇-反应.
- 由生物基磁醇 (或基醇) 和商业化默卡坦/基所衍生的单体.
- 聚合物薄膜的特性,包括折射率,阿贝数,透射率,雾和热稳定性.
主要成果:
- 成功合成的聚合物具有较高的折射率和较高的阿贝数.
- 在可见到近红外区域 (550-2000 nm) 实现了高传导率 (高达90%).
- 证明近0%的紫外线透射率,可见光谱中的低雾,以及良好的热稳定性.
结论:
- 合成的生物基聚合物具有优良的光学特性,适用于光学镜片和抗紫外线涂层.
- 合成过程的成本效益,简单性和效率促进了工业的可扩展性.
- 这些聚合物代表了可持续光学材料的有希望的进步.
相关概念视频
01:57Preparation of Diols and Pinacol Rearrangement
3.3K
Compounds bearing two hydroxyl groups are known as diols. When the hydroxyl groups are located on adjacent carbon atoms, the diols are called vicinal diols or glycols. Under acidic conditions, vicinal diols undergo a specific reaction called pinacol rearrangement.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
3.3K
03:08Hydroboration-Oxidation of Alkenes
8.0K
In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
8.0K