在水中的非两性组件:多态性质,线程结构和热力学不兼容性
Lei Wu1, Jyotsana Lal, Karen A Simon
1Department of Chemistry, Syracuse University, Syracuse, New York 13244, USA.
Journal of the American Chemical Society
|May 9, 2009
概括
研究人员设计了水溶性分子,这些分子自组装成液晶. 这一发现为在水溶液中非两性分子组合和液晶形成提供了新的见解.
科学领域:
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 水溶性分子的自我组装是难以进入的.
- 了解水中的非两性组件对于开发新材料至关重要.
研究的目的:
- 设计和合成水溶性芳香分子,能够形成非两组合和色素液晶.
- 为了研究水溶液中的组装行为和液晶相形成.
主要方法:
- 合成新型水溶性二氧化分子.
- 液晶相的表征使用双折.
- 微角中子散射 (SANS) 用于确定组件结构.
- 研究添加单离子和二离子分子的效果.
主要成果:
- 合成了一种新分子,5'DSCG-diviol,它表现出一个很大的双断相.
- 在水中形成了非两组合和染色液晶相.
- SANS揭示了度独立的棒状组件.
- 单离子分子破坏了液晶相,而二离子分子保留了它.
结论:
- 提出了一种新的组装结构,用于水中的非性分子,称为分子线程.
- 这些线程由由盐桥和堆叠的芳香基团连接的小分子组成,高度水.
- 混合不同的分子可以导致新的液晶或相分离由于热力学不兼容性.
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