Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Japan.
Chemphyschem. 2012 Dec 21;13(18):4129-33. doi: 10.1002/cphc.201200820. Epub 2012 Nov 5.
The mode change of a simple autonomous motor depending on the nature of a monolayer on water is investigated. A camphor disk is floated on a molecular layer of N-stearoyl-p-nitroaniline (C(18)ANA), which gives a surface-pressure (π)-area per molecule (A) isotherm with a local maximum and a local minimum. The nature of the camphor motion changes depending on A, and in particular, reciprocating motion is observed at a lower A while cutting out its own trajectory of motion. The characteristic motion of a camphor disk depending on A is discussed in relation to the π-A isotherm of C(18)ANA and the influence of the molecular interaction between molecules on the driving force of motion.
研究了一种简单的自主马达在水的单层性质的作用下的模式变化。樟脑圆盘漂浮在 N-硬脂酰对硝基苯胺（C（18）ANA）的分子层上，该分子层具有局部最大值和局部最小值的表面压（π）-每个分子的面积（A）等温线。樟脑运动的性质取决于 A，并且特别地，在较低的 A 下观察到往复运动，同时切出其自身的运动轨迹。讨论了樟脑圆盘的特征运动取决于 A 与 C（18）ANA 的π-A 等温线以及分子间相互作用对运动驱动力的影响。
