在聚合物薄膜中形成的3D相互连接的离子纳米通道:热热双连续立体液晶的自我组织和聚合
Takahiro Ichikawa1, Masafumi Yoshio, Atsushi Hamasaki
1Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Journal of the American Chemical Society
|January 29, 2011
概括
新型聚合液晶形成稳定,离子导体的固体薄膜. 这些薄膜具有3D双连续立方体 (Cub(bi)) 液晶 (LC) 纳米结构,可为先进的电池应用提供高效的离子传输.
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
- 电化学 电化学 电化学
背景情况:
- 开发固态电解质对于更安全,更高效的离子电池至关重要.
- 液晶材料提供独特的自组装特性,用于创建有序的纳米结构.
研究的目的:
- 为离子导电固体聚合物电解质设计和合成新型热otropic 液晶化合物.
- 研究聚合物薄膜内双连续立方体 (Cub(bi)) 液晶相的形成和稳定.
主要方法:
- 合成可聚合的基液晶复合盐.
- 使用温度依赖分析对液晶相 (Cub(bi),Col(h)) 的表征.
- 在UV照射下液晶相的现场光聚合.
- 进行X射线分析以确认纳米结构的保存.
- 由此产生的聚合物薄膜的离子导电性测量.
主要成果:
- 设计的单体及其盐复合物表现出热热的Cub (bi) 和六角柱状 (Col (h)) 液晶相.
- 在现场光聚合成功地在独立的,光学透明的聚合物膜中保存了Cub的液晶纳米结构.
- 与其他相相相比,保留Cub(bi) 纳米结构的聚合物薄膜显示出明显更高的离子导电性.
- 在Cub () 阶段内,3D相互连接的离子通道被证实是离子导电的高效通道.
结论:
- 可聚合液晶可用于制造具有增强离子导电性的纳米结构固体聚合物电解质.
- 保持双连续立方液晶相是实现有效离子传输的关键.
- 这些发现为开发先进的固态离子电池技术铺平了道路.
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