甲基三甲氧基硅烷
材料科学
收缩率
气凝胶
环境压力
毛细管作用
复合材料
多孔性
超临界干燥
蒸发
化学工程
溶剂
溶胶凝胶
纳米技术
有机化学
涂层
化学
工程类
物理
热力学
作者
Kazuyoshi Kanamori,Mamoru Aizawa,Koji Nakanishi,Teiichi Hanada
标识
DOI:10.1002/adma.200602457
摘要
Transparent organic–inorganic hybrid aerogels and xerogels are prepared by using a sol–gel synthesis from a single trifunctional precursor, methyltrimethoxysilane (see figure). Obtained aerogels show a reversible shrinkage–recovery response against uniaxial compression. Aerogel-like xerogels are successfully obtained by evaporation drying under ambient pressure because the gels recover from the temporal shrinkage caused by the capillary force of a drying solvent. Pore properties and nanotextures are well-preserved in the resultant xerogels.
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