Self-Oscillating Soluble−Insoluble Changes of a Polymer Chain Including an Oxidizing Agent Induced by the Belousov−Zhabotinsky Reaction.
- Resource Type
- Article
- Authors
- Hara; Y.; Sakai; T.; Maeda; S.; Hashimoto; Yoshida; R.
- Source
- Journal of Physical Chemistry B. Dec2005, Vol. 109 Issue 49, p23316-23319. 4p.
- Subject
- *POLYMERS
*OXIDIZING agents
*PLATINUM group
*BODY temperature
- Language
- ISSN
- 1520-6106
A new type of self-oscillating polymer was prepared by utilizing the Belousov−Zhabotinsky reaction. In this study, capture sites with a positive charge for an oxidizing agent as a counterion were incorporated into the copolymer of N-isopropylacrylamide and the ruthenium complex as a catalyst. Soluble−insoluble self-oscillation of the polymer was first achieved without adding an oxidizing agent. The effect of temperature on the self-oscillating behavior was investigated. It was clarified that the polymer had two advantageous characteristics because of the higher LCST; one is to enable self-oscillation around body temperature, and the other is to cause the oscillation for a longer time without intermolecular aggregation among the polymer chains in the reduced state. This achievement of self-oscillation of polymer chains including an oxidizing agent may lead to their practical use under oxidant-free conditions. [ABSTRACT FROM AUTHOR]