Porous Gels Made by Phase Separation: Recent Progress and Future Directions
Porous Gels Made by Phase Separation: Recent Progress and Future Directions
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相分离制备的多孔凝胶：最新进展和未来方向
DOI：
10.1023/a:1008710104904
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发表时间：
2000
影响因子：
2.5
通讯作者：
K. Nakanishi
中科院分区：
文献类型：
--
作者：
K. Nakanishi
综述了溶胶-凝胶科学中有关相分离制备多孔凝胶的最新进展。基于整体材料探索的原理和技术，材料形状已扩展到毛细管等有限空间中的大孔厚膜和大孔凝胶，这两种材料有望在色谱中找到有用的应用。微米级凝胶骨架内额外孔隙的可调节尺寸范围已从沸石的微孔、表面活性剂模板的介孔到强水热处理的大孔扩大。使用激光扫描共焦显微镜对真实空间中的 3D 界面结构进行了详细研究，从而能够将该结构与其他相分离系统的结构进行定量比较。
Recent progress in the sol-gel science concerning the porous gels made by phase separation has been reviewed. Based on the principle and technique explored for monoliths, the material shape has been extended to a macroporous thick film and a macroporous gel in a confined space such as capillary, both of which are expected to find useful applications in the chromatography. The modifiable size range of the additional porosity within the micrometer-sized gel skeleton has been broadened from micropores by zeolite, mesopores by surfactant templates to macropores by intensive hydrothermal treatments. A detailed investigation of 3D interfacial structure in real space has been performed using the laser scanning confocal microscope, which enabled quantitative comparison of the structure with those of other phase-separating systems.