Redox-responsive gel-sol/sol-gel transition in poly(acrylic acid) aqueous solution containing Fe(III) ions switched by light |
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| Authors: | Peng Fei Li Guangzhao Liu Xinxing Wu Shuizhu Tong Zhen |
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| Institution: | Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China. |
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| Abstract: | Redox-responsive gel-sol/sol-gel transition in aqueous PAA system containing Fe(III)-citrate complex was realized by switching the redox states of Fe(III)/F(II) ions conjugated with photoreduction and oxidation. This reversible transition can be indicated chromatically by the Fe(III) ions and repeated many times as long as there is sufficient citric acid. |
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