writer：Aijuan Zhang , Qingkun Zhang, Hua Bai, Lei Li* and Jun Li
keywords：(1) Advantages of green foaming technologie s w ith supercritic al CO2 (scCO2) and CO2-expanded liquids (CXLs). (2) Polymer nanofoams fabricated by pressure-quench and temperature-soak technologies. (3) Polymeric nanoporous monoliths and films fabric
source：期刊
specific source：Chem. Soc. Rev.
Issue time：2014年
Both academia and industries have put great efforts into developing non-destructive technologies for the fabrication of polymeric nanoporous materials. Such non-destructive technologies developed with supercritical CO2 (scCO2) and CO2-expanded liquids (CXLs) have been attracting more and more attention because they have been demonstrated to be green and effective media for porous polymer preparation
and processing. In this tutorial review, we present several such new technologies with scCO2 and CXLs, which have the capacity to prepare polymeric nanoporous materials with unique morphologies. The fabricated nanoporous polymers have significantly improved the performance of polymeric monoliths and films, and have found wide applications as templates, antireflection coatings, low- k materials, tissue
engineering scaffolds and filtration membranes. This tutorial review also introduces the associated characterization methods, including the imaging, scattering and physisorption techniques.