线状合体和半柔性聚合物的液-液晶相分离:实验,理论和模拟
Hamed Almohammadi1,2, Sayyed Ahmad Khadem3,4, Paride Azzari1
1Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland.
Reports on progress in physics. Physical Society (Great Britain)
|February 10, 2025
概括
液-液晶相分离 (LLCPS) 涉及到将溶液分解成具有独特性质的不同相. 这种受控制的过程受到动力学,热力学和系统历史的影响.
科学领域:
- 物理化学 物理化学
- 材料科学 材料科学 材料科学
- 软物质物理学 软物质物理学
背景情况:
- 液-液晶相分离 (LLCPS) 描述了同质溶液的分离成不同的相.
- 一个阶段是溶解物稀缺和同otropic,而另一个阶段是溶解物丰富,并表现出液晶异otropic 特性.
- 与灵活的宏分子液-液相分离 (LLPS) 不同,LLCPS主要是受控制的.
研究的目的:
- 全面审查液体-液体晶相分离 (LLCPS).
- 讨论用于理解LLCPS的实验,理论和模拟方法.
- 探索LLCPS在各种科学领域的意义和应用.
主要方法:
- 对诱导和控制LLCPS的实验系统和方法的审查.
- 讨论合理化LLCPS的理论和建模框架.
- 扩展数值模拟在阐明LLCPS中的作用.
主要成果:
- LLCPS是一个由驱动的过程,其中相位属性取决于动力学,热力学和系统历史.
- 为了研究LLCPS,已经采用了各种各样的实验技术.
- 理论模型和模拟为管理LLCPS的机制提供了洞察力.
结论:
- LLCPS是一个复杂的现象,由,动力学和历史决定.
- 结合实验,理论和模拟的多学科方法对于全面的理解至关重要.
- 在生物学,纳米技术和日常生活中,LLCPS具有潜在的应用.
相关概念视频
Colloids
17.3K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
17.3K
Colloidal precipitates
492
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
492
Polymer Classification: Crystallinity
2.8K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
2.8K
Colloids and Suspensions
1.7K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
1.7K
Coagulation
258
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
258


