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Template-synthesized opal hydrogelsDOI: 10.1007/BF03184058 Keywords: hydrogels,templates,ordered,colloids,structures Abstract: Opal hydrogels could be synthesized with polymer inverse opal template. A pH responsive opal N-isopropylacrylamide/acrylic acid copolymerized hydrogel was prepared as an example. The ordered structure and response to pH were investigated. Through the sol-gel process of tetrabutyl titanate, opal titania was obtained with the opal hydrogel template.
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