聚双环戊二烯（PDCPD）基多孔材料继承了聚双环戊二烯本身固有的高模量等特性，近年来备受关注。PDCPD基多孔材料的制备方法主要有溶胶-凝胶结合超临界干燥法、高内相乳液法、化学诱导相分离法以及化学发泡法等。利用不同方法制备的PDCPD多孔材料往往具有不同的结构和性能特征。例如，利用化学诱导相分离法和化学发泡法制备的低孔隙率闭孔PDCPD基材料多作为结构材料；高内相乳液法制备的开孔PDCPD基复合膜可实现催化反应；溶胶-凝胶结合超临界干燥法制备的高孔隙率开孔PDCPD材料导热系数低于20 mW/（m·K），可用于保温隔热。此外，本文还展望了PDCPD基多孔材料的发展前景。
The porous polydicyclopentadiene(PDCPD)-based materials which inherit the high modulus of PDCPD have been greatly concerned in recent years. The major methods to prepare porous PDCPD-based materials include sol-gel & supercritical fluid drying,high internal phase emulsion, chemically induced phase separation and chemical foaming. The structure of porous PDCPD-based materials made by different methods determines their various applications. For example, the porous PDCPD-based materials with low-porosity and closed-cell structure that prepared by chemically induced phase separation and chemical foaming can be used as the structural materials. The PDCPD-based composite membrane fabricated by high internal phase emulsion is applied to catalytic reaction. The open-cell PDCPD aerogels made by sol-gel & supercritical fluid drying have high-porosity and low thermal conductivity (<20 mW/(m·K)), which is a good candidate for the thermal insulation materials. The development of the porous PDCPD-based materials are also prospected.
Contents
1 Introduction
2 Sol-gel & supercritical fluid drying
3 High internal phase emulsion
4 Chemically induced phase separation
5 Chemical foaming
6 Conclusion
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