OKANO Teruo
   Department   Research Institutes and Facilities, Research Institutes and Facilities
   Position  
Article types Original article
Language English
Peer review Non peer reviewed
Title Aspects of the Belousov-Zhabotinsky Reaction inside the Self-Oscillating Polymer Brush.
Journal Formal name：Langmuir : the ACS journal of surfaces and colloids
Abbreviation：Langmuir
ISSN code：(1520-5827)0743-7463(Linking)
Domestic / ForeginForegin
Volume, Issue, Page 34(4),pp.1673-1680
Author and coauthor MASUDA Tsukuru†, AKIMOTO-MIZUTANI Aya, FURUSAWA Mami, TAMATE Ryota, NAGASE Kenichi, OKANO Teruo, YOSHIDA Ryo*
Publication date 2017/12
Summary We have developed a novel polymer brush surface exhibiting autonomous swelling-deswelling changes driven by the Belousov-Zhabotinsky (BZ) reaction, that is, the self-oscillating polymer brush. In this system, the ruthenium tris(2,2'-bipyridine) [Ru(bpy)3] catalyst-conjugated polymer chains are densely packed on the solid substrate. It is expected that the BZ reaction in the polymer brush would be influenced by the immobilization effect of the catalyst. To clarify the effect of immobilization of the catalyst on the self-oscillating polymer brush, the self-oscillating behavior of the polymer brush was investigated by comparing it with that of other self-oscillating polymer materials, the free polymer and the gel particle under various initial substrate concentrations. The initial substrate dependency of the oscillating period for the polymer brush was found to be different from those for the free polymer and the gel particle. Further, the oscillatory waveform was analyzed based on the Field-Körös-Noyes model. These investigations revealed that the dense immobilization of the self-oscillating polymer on the surface restricted accessibility for the Ru(bpy)3 moiety. These findings would be helpful for understanding the reaction-diffusion mechanism in the polymer brush, which is a novel reaction medium for the BZ reaction.
DOI 10.1021/acs.langmuir.7b03929
PMID 29281793