功能性纳米复合材料通过自组装和聚合二乙烯表面活性剂和酸的聚合而制成
Yi Yang1, Yunfeng Lu, Mengcheng Lu
1Center for Micro-Engineered Materials, The University of New Mexico, Albuquerque, New Mexico 87131, USA.
Journal of the American Chemical Society
|January 30, 2003
概括
研究人员使用自组装创建了新的结合聚合物/纳米复合材料. 这些材料具有增强的性能,为先进的应用提供了稳定的平台.
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
- 纳米技术纳米技术
背景情况:
- 结合聚合物具有独特的电子和光学性能,但往往缺乏机械和化学稳定性.
- 将聚合物集成到有序无机矩阵中可以提高其性能和可加工性.
研究的目的:
- 开发一种通用和高效的方法,在一个强大的无机框架内制造纳米结构联聚合物.
- 研究可聚合表面活性剂/纳米复合材料的自组装行为和特性.
主要方法:
- 结合聚合物/纳米复合物的合成通过自组装使用可聚合的两性二乙烯分子.
- 通过调整表面活性剂头组大小来定制中相结构 (六角形,立方形,片状).
- 使用分子建模,量子计算,固态NMR,纳米缩影和气体运输实验进行表征.
主要成果:
- 在有序的无机环境中实现有机单体的快速,均的结合.
- 通过调整表面活性剂结构来证明对中相形成的控制.
- 合成的光学透明和机械坚固的聚乙烯 (PDA) /纳米复合材料.
- 在纳米复合材料中观察到独特的热,机械和溶解色特性.
- 与纯PDA相比,显示硬度增加和透性降低.
结论:
- 可聚合表面活性剂/的自组装是制造纳米结构联聚合物的有效策略.
- 无机框架增强了聚合物的稳定性,定向性和性能.
- 这些纳米复合材料具有适合整合到设备和微系统中的特性.
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