在基于胆固醇的有机化合物中调节铁电相,采用高醇尾部工程
Huan-Huan Jiang1, Nan Zhang1, Wei-Xin Mao2
1Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People's Republic of China.
概括
研究人员通过修改醇基链来设计有机单元铁电晶体. 这种新的方法允许温度和链条长度控制相位过渡,这是 perfluoroalkyl 尾部工程的首次.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
背景情况:
- 有机单元铁电晶体对电子应用具有前景.
- 控制这些材料中的相变对于设备性能至关重要.
研究的目的:
- 为铁电应用合成新的基于胆固醇的化合物.
- 为了研究醇基链长度对相位过渡调制的影响.
主要方法:
- 基于胆固醇的化合物的合成,具有不同的醇基链长度.
- 材料相的表征及其与温度相关的转变.
主要成果:
- 成功合成了一系列基于胆固醇的化合物.
- 证明相位转换可以通过温度和醇基链长度来调节.
- 在有机单元铁电晶体中通过 perfluoroalkyl 尾部工程实现了相变的调制.
结论:
- perfluoroalkyl 尾部工程为控制铁电性质提供了一个新的策略.
- 基于胆固醇的化合物与量身定制的醇基链显示出先进电子设备的潜力.
相关概念视频
Synthesis of Phosphatidylcholine in the ER Membrane
3.1K
The ER synthesizes lipids for building cell membranes and performing cellular functions such as energy storage and signaling. The lipid synthesis machinery embedded in the ER membrane primarily collects all reactants from the cytosol. Following synthesis, the secretory pathway and the ER contact sites distribute these lipids to other cellular organelles. Additionally, the energy-rich triacylglycerides are transported from the ER via lipid droplets.
The major components of all eukaryotic cell...
The major components of all eukaryotic cell...
3.1K
Membrane Fluidity
152.2K
Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.
152.2K
Extraction: Advanced Methods
446
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
446


