阳光诱导的相位分离和形态控制在双胞胎二元融中
Vanshika Saini1, Ashish Kumar Singh1, Awaneesh Singh1
1Indian Institute of Technology (BHU), Department of Physics, Varanasi, Uttar Pradesh 221005, India.
Physical review. E
|September 16, 2025
概括
控制的光感应相分离在两二次体中可以创建可调的多尺度形态. 这种由可逆键断裂和重构驱动的动态过程,在先进的材料合成和稳定中提供了应用.
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
- 软物质物理学 软物质物理学
背景情况:
- 两胞性二元融体表现出复杂的相位行为.
- 光敏键提供了一条通往对分子相互作用的动态控制的途径.
研究的目的:
- 在具有光敏感键的两二次体中研究相位分离动力学.
- 在光诱导循环下分析多尺度形态的形成.
- 探索材料科学中的潜在应用.
主要方法:
- 分散粒子动力学 (DPD) 模拟.
- 在临界温度以下火.
- 交替开/关灯周期来控制粘合体的裂变/重塑.
主要成果:
- 打开光线会分裂纽带,触发相位分离;关闭光线会改变纽带,导致混合.
- 多尺度形态的形成是由竞争混合-脱混合驱动的.
- 在非循环期间,系统表现出质量碎形特征.
- 结构因子显示的峰值表明了大量形态的发展.
- 长度尺度遵循粘性和惯性水力动力学制度的功率定律增长.
结论:
- 光控制的可逆键动力学使可调节的相位分离和形态学.
- 系统的动态行为对于创建复杂结构至关重要.
- 潜在的应用包括疏水剂,黑色素合成和乳液稳定.
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