Related Experiment Video
Updated: Aug 15, 2026

Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light
Published on: September 20, 2017
Control of oscillating behavior for the self-oscillating polymer with pH-control site
1Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Abstract:
A novel self-oscillating polymer was prepared by copolymerizing the catalyst for the Belousov-Zhabotinsky reaction with N-isopropylacrylamide. Further, by introducing acrylamide-2-methylpropane sulfonic acid (AMPS) with a sulfonic acid group as a pH-control site into the polymer, self-oscillation under acid-free conditions was achieved. The period and amplitude for the self-oscillation is controllable by changing the composition of the polymer. On-off switching of self-oscillation is also possible by changing temperature or substrate concentrations. The AMPS plays an important role not only to control the pH but also to change the solubility of the polymer.
Related Concept Videos
Cationic Chain-Growth Polymerization: Mechanism
Anionic Chain-Growth Polymerization: Mechanism
Oscillations In An LC Circuit
Radical Chain-Growth Polymerization: Overview
Conservative Site-specific Recombination and Phase Variation
The recognition sites for Cre recombinase called LoxP...
Polymers

