Synchronization of Two Self-Oscillating Gels Based on Chemo-Mechanical Coupling
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- 作者：Kentaro Ito ; Takato Ezaki ; Shogo Suzuki ; Ryo Kobayashi ; Yusuke Hara ; Satoshi Nakata
- 刊名：Journal of Physical Chemistry B
- 出版年：2016
- 出版时间：March 24, 2016
- 年：2016
- 卷：120
- 期：11
- 页码：2977-2983
- 全文大小：472K
- ISSN：1520-5207
文摘
Two coupled polymer gels, showing volume oscillation caused by the Belousov–Zhabotinsky (BZ) reaction, were investigated to understand the system composed of mechanically coupled chemical oscillators. The two gels were connected with a movable plastic sheet in between and placed under constant compression. Synchronization between two identical gels occurred in a range of compression ratios. The phase difference between the two oscillating gels was not zero; instead, they showed alternate swelling–deswelling oscillations. Similar phenomena were also observed with gels of different sizes and natural oscillation periods. The experimental results suggest that a physical change in one gel can lead to a chemical change in the other and vice versa. These results were qualitatively reproduced by a mathematical model based on coupled chemical oscillators.