Harun-Ur-Rashid Mohammad, Seki Takahiro, Takeoka Yukikazu
Department of Molecular Design and Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan.
Chem Rec. 2009;9(2):87-105. doi: 10.1002/tcr.20169.
A periodically ordered interconnecting porous structure can be embodied in chemical gels by using closest-packed colloidal crystals as templates. The interconnecting porosity not only provides a quick response but also endows the porous gels with structural color arising from coherent Bragg optical diffraction. The structural colors revealed by porous gels can be regulated by several techniques, and thus, it is feasible to obtain desirable, smart, soft materials. A well-known thermosensitive monomer, N-isopropylacrylamide (NIPA), and other minor monomers were used to fabricate various structural colored gels. The selection of minor monomers depended on the targeted properties. This review focuses on the synthesis of templates, structural colored porous gels, and the applications of structural colored gel as smart soft materials for tunable photonic crystals.
通过使用密堆积胶体晶体作为模板，可以在化学凝胶中实现周期性有序的互连多孔结构。互连孔隙率不仅提供快速响应，还赋予多孔凝胶因相干布拉格光学衍射而产生的结构色。多孔凝胶所呈现的结构色可通过多种技术进行调控，因此，获得理想的、智能的、柔软的材料是可行的。一种著名的热敏单体N-异丙基丙烯酰胺（NIPA）和其他少量单体被用于制备各种结构色凝胶。少量单体的选择取决于目标性能。本综述重点关注模板的合成、结构色多孔凝胶以及结构色凝胶作为用于可调谐光子晶体的智能软材料的应用。
