材料科学
多孔性
连接器
超临界流体
超分子化学
分子
制作
多孔介质
纳米技术
气凝胶
化学工程
复合材料
有机化学
化学
计算机科学
操作系统
医学
工程类
病理
替代医学
作者
Jin Wang,Ran Du,Xuetong Zhang
标识
DOI:10.1021/acsami.7b18741
摘要
Polyrotaxanes (PRs) are supramolecular systems that combine with several cyclic molecules threaded on a linear molecule, and have been widely applied in molecular abacus, stimuli-responsive systems, self-healing materials, etc. The fabrication of macroscopic porous PR monoliths, which is expected to impart more functions, has not been realized yet. PR aerogels featuring with high specific surface area (232 m2/g), high strength (74.7 MPa), and temperature-responsiveness have been synthesized in this work by introducing poly(N-isopropylacrylamide) to the molecular necklaces followed by chemical cross-linking with a rigid cross-linker and supercritical fluid drying in sequence, which might open a new door toward smart macroscopic porous materials.
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