Chromic Slide-Ring Gel Based on Reflection from Photonic Bandgap
Chromic Slide-Ring Gel Based on Reflection from Photonic Bandgap
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DOI：
10.1021/ma0715627
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发表时间：
2008-02
期刊：
影响因子：
5.5
通讯作者：
Harumi Murayama;A. Imran;Shusaku Nagano;T. Seki;M. Kidowaki;K. Ito;Y. Takeoka
中科院分区：
文献类型：
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作者：
Harumi Murayama;A. Imran;Shusaku Nagano;T. Seki;M. Kidowaki;K. Ito;Y. Takeoka
在这里，我们报告了一种由聚轮烷组成的铬滑环凝胶，使用密堆积的胶体晶体作为模板。在滑环凝胶中，具有庞大端基的聚合物链不像化学凝胶那样共价交联，也不像物理凝胶那样相互吸引，而是通过8字形交联在拓扑上互锁。滑环凝胶具有可自由移动的交联，其对拉伸变形具有滑轮效应。这种效应改善了聚合物凝胶的机械性能。在这项工作中，这种物理和机械优化的聚合物凝胶被用来制造刺激响应的光子带隙材料。我们的凝胶表现出基于结构颜色变化的溶剂化变色行为。
Here we report on a chromic slide-ring gel consisting of polyrotaxane by using a close-packed colloidal crystal as a template. In the slide-ring gel, the polymer chains with bulky end groups are not covalently cross-linked like chemical gels nor do they interact attractively like physical gels, but are topologically interlocked by figure-of-eight cross-links. The slide-ring gel has freely movable cross-links, which have a pulley effect on tensile deformation. This effect improves the mechanical properties of polymer gels. In this work, this physically and mechanically optimized polymer gel was used to make stimuli-responsive photonic band gap materials. Our gel exhibits solvatochromic behavior based on the change in structural color.