聚合诱导的结晶形成可伸缩的水凝,带有带状球体和圆形偏振的发光
Zi Rong Zhang1, Huaqiang Ju1, Haoke Zhang1
1Department of Polymer Science and Engineering, Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou, 310058, China.
Advanced materials (Deerfield Beach, Fla.)
|June 11, 2025
概括
研究人员创造了具有独特晶体结构的可调和,可拉伸的水凝. 这些材料表现出可控制的光和循环极化发光 (CPL),为先进的软材料开辟了新的途径.
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
- 晶体学 晶体学是指结晶学.
背景情况:
- 开发具有可调节光学特性的先进软材料对于下一代技术至关重要.
- 在聚合物网络中控制晶体结构的形态和自我组装仍然是一个重大挑战.
研究的目的:
- 合成具有可控制球状石形态的可伸缩水凝.
- 研究聚合物网络特性与晶体形成之间的关系.
- 探索由此产生的光学特性,包括光和循环极化发光 (CPL).
主要方法:
- 在聚烯胺网络中的多分子的聚合诱导结晶.
- 通过调整交叉连接器/启动器度或光强度来调整水凝的刚度.
- 使用显微镜和散射测量进行表征.
- 光学属性分析,包括光和CPL测量.
主要成果:
- 可调节的水凝刚度成功调节了正规球状物与带状球状物与扭曲的晶体纤维的形成.
- 软的凝中的带状球体呈现出增强的循环极化发光 (CPL),不对称系数高达+1.5×10−2.
- 聚合物网络和晶体生长之间的相互作用决定了复合水凝的集体光学功能.
结论:
- 该研究展示了一个设计原理,用于创建具有定制晶体结构和光学功能的软材料.
- 在扭曲的晶体纤维中观察到的合转移机制为在合系统中产生CPL提供了一条途径.
- 这项工作为开发具有精确工程光学特性的新型软材料提供了基础.
相关概念视频
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
Polymer Classification: Stereospecificity
2.4K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
2.4K


