Turing pattern formation by the CIMA reaction in a chemical system consisting of quaternary alkyl ammonium cationic groups

Kouichi Asakura, Ryo Konishi, Tomomi Nakatani, Takaya Nakano, Masazumi Kamata

研究成果: Article査読

20 被引用数 (Scopus)

抄録

For the spontaneous generation of a Turing pattern, two intermediate species, an activator and an inhibitor, should be generated with the diffusion coefficient of the activator smaller than that of the inhibitor. The chlorite-iodide-malonic acid (CIMA) reaction that generates the activator, I-, and inhibitor, ClO2-, was performed in an open gel reactor. In order to lower the effective diffusivity of I-, micelles of quaternary alkyl ammonium cationic amphiphiles and polymers having a quaternary alkyl ammonium cationic side chain were combined in the CIMA reaction system in an open gel reactor. A Turing pattern formation was observed with the addition of n-dodecyltrimethylammonium bromide. Employing the gel reactor prepared by the polymerization of a monomer having quaternary alkyl ammonium cationic side chains also leads to the generation of a Turing pattern. The micelles and polymers are believed to trap I- in their vicinity as a counterion to lower the effective diffusivity.

本文言語English
ページ(範囲)3959-3963
ページ数5
ジャーナルJournal of Physical Chemistry B
115
14
DOI
出版ステータスPublished - 2011 4月 14

ASJC Scopus subject areas

  • 物理化学および理論化学
  • 表面、皮膜および薄膜
  • 材料化学

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