Stepwise controlled immobilization of colloidal crystals formed by polymer-grafted silica particles |
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| Authors: | Yoshinaga Kohji Fujiwara Kumiko Mouri Emiko Ishii Masahiko Nakamura Hiroshi |
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| Institution: | Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui, Tobata, Kitakyushu, Fukuoka 804-8550, Japan. khyosina@che.kyutech.ac.jp |
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| Abstract: | Colloidal crystals formed by polymer-grafted silica particles were immobilized by a stepwise procedure consisting of gelation by radical copolymerization followed by solidification by ring-opening radical polymerization. In the first step, the poly(methyl methacrylate) (PMMA)-grafted silica colloidal crystal suspension was incorporated into the gel without altering the crystal structure by copolymerization of cross-linker, 1,2-dimethylacryloyloxyethane (DME) and methyl methacrylate (MMA). In the second step, ring-opening radical polymerization was performed after substituting the solvent with vinylidene-1,3-dioxolane. By this two-step procedure, the silica particle array of colloidal crystals was immobilized and made into durable material. |
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