Lamellar hydrogels with high toughness and ternary tunable photonic stop-band.

Yue, You Feng; Haque, M Anamul; Kurokawa, Takayuki; Nakajima, Tasuku; Gong, Jian Ping · Adv Mater · 2013

basic_science · Level V

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Abstract

A lamellar hydrogel with high toughness, exhibiting ternary stimuli-responsive structural color changes has been synthesized. The gel consists of alternating hard layers of a polymeric surfactant (PDGI) and soft layers of interpenetrating networks of poly(acrylamide)-poly(acrylic acid). Reversible, wide range switching of the stop-band position was achieved using different external stimuli of temperature, pH, and stress/strain.