Autonomous Oscillation of Polymer Chains Induced by the Belousov–Zhabotinsky Reaction
AbstractWe investigated the self-oscillating behaviors of two types of polymer chains induced by the Belousov–Zhabotinsky (BZ) reaction. One consisted of N-isopropylacrylamide (NIPAAm) and the Ru catalyst of the BZ reaction, and the other consisted of NIPAAm, the Ru catalyst, and acrylamide-2-methylpropanesulfonic acid (AMPS) with a negatively charged domain as a solubility control site. A comparison of the two types of self-oscillation systems showed that the anionic AMPS portion of the polymer chain significantly affected the self-oscillating behavior under strongly acidic condition. The periods of self-oscillation for the two types of self-oscillating polymer chains were investigated by changing the initial concentrations of the three BZ substrates and the temperature. As a result, it was demonstrated that the period of self-oscillation could be controlled by the concentration of the BZ substrates and the temperature. Furthermore, the activation energies of the two types of the self-oscillating polymer chains gave similar values as normal BZ reactions, i.e., not including the self-oscillating polymer system with a Ru moiety. In addition, it was clarified the activation energy was hardly affected by the initial concentration of the three BZ substrates.
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Hara, Y.; Takenaka, Y. Autonomous Oscillation of Polymer Chains Induced by the Belousov–Zhabotinsky Reaction. Sensors 2014, 14, 1497-1510.
Hara Y, Takenaka Y. Autonomous Oscillation of Polymer Chains Induced by the Belousov–Zhabotinsky Reaction. Sensors. 2014; 14(1):1497-1510.Chicago/Turabian Style
Hara, Yusuke; Takenaka, Yoshiko. 2014. "Autonomous Oscillation of Polymer Chains Induced by the Belousov–Zhabotinsky Reaction." Sensors 14, no. 1: 1497-1510.