热力学控制的多相分离异质液晶合物
Han Tao1, Carlo Rigoni2, Hailong Li3
1Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, Vuorimiehentie 1, 02510, Espoo, Finland.
Nature communications
|August 29, 2023
概括
本研究探讨了聚合物和纳米纤维素混合物的复杂相分离. 研究人员实现了受控的多相共存和分层的自我组装到分层的薄膜中.
科学领域:
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
- 体科学 体科学 体科学
背景情况:
- 阶段分离是创建复杂材料的一个基本过程.
- 控制同时发生的液体-液体和液晶相转换是具有挑战性的.
研究的目的:
- 开发异质的合悬浮物,表现出合的液-液和液晶相分离.
- 通过热力学和动力学来研究控制相位行为.
- 探索分层自我组装成功能性电影.
主要方法:
- 用半柔性聚合物和刚性纳米纤维素制造异质合物悬浮剂.
- 多相分离的热力学和动力学控制.
- 阶段共存和自我组装过程的特征.
- 干燥以形成分层胆固醇膜.
主要成果:
- 与液晶堆叠实现了两,三,四相共存.
- 证明了聚合物滴和纳米纤维素形体的独特动态路径.
- 在液晶晶矩阵中观察到热otropic 聚合物的行为.
- 创建了分层聚合物和异型微孔的分层胆固醇薄膜.
结论:
- 在复杂的合体系统中,可以精确控制多相分离和自我组装.
- 结合相变提供了一条通往先进材料制造的途径.
- 层次组装导致具有可调节性质的结构化片.
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