通过奥斯摩斯压力控制的硬环状粒子的合锁锁二度化反应
Po-Yuan Wang1, Thomas G Mason1
1Department of Materials Science and Engineering, ‡Department of Chemistry and Biochemistry, and §Department of Physics and Astronomy, University of California-Los Angeles , Los Angeles, California 90095, United States.
Journal of the American Chemical Society
|November 25, 2015
概括
在二维压缩时形成状环状板块. 由于可访问的微态减少,它们的二元化平衡常数随着奥斯莫斯压力呈指数增大.
科学领域:
- 体科学
- 软物质物理
- 统计力学
背景情况:
- 具有复杂形状的体粒子表现出独特的自我组装行为.
- 透压缩是影响体系统相位过渡的关键因素.
- 布朗运动控制了二维 (2D) 系统中的粒子动力学.
研究的目的:
- 在奥斯莫斯压力下研究微尺度合环状板块的二元化.
- 在二维引力列中描述这些粒子的相态和状态方程.
- 确定单体二元形成的平衡常数及其对透压的依赖.
主要方法:
- 石版制造270°环状部门微粒.
- 在倾斜的二维引力柱中形成稳定的水分分散和观测.
- 测量粒子面积分数作为深度的函数,以确定透压力和状态方程.
主要成果:
- 观察不同的相位:低压下类似气体的单体相位,与单体和二元相位的反应区,高压下停止的二元相位.
- 形成相互透的锁钥匙二次体,具有血性.
- 确定体系统的二维透状态方程.
- 单质二元平衡常数的计算,显示与透压的指数式增加.
结论:
- 体环状部门经受压力诱导的二元化.
- 分离平衡受到透压力的强烈影响,这与二聚体可用的微态相一致.
- 该系统为研究2D合体中形状依赖的自我组装和相位行为提供了一个模型.
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