| 초록 |
Nanoporous polymeric materials with distinct nanostructure and functionalities have been prepared by coupling multiple structure-forming mechanisms. We recently reported blending a gelating covalent network and linear polymer in a controlled manner could generate various monolithic and co-continuous nanostructures, which can be transformed into a robust nanoporous membrane. Simultaneous phase separation and gelation of the covalent network was proposed as a structure-forming mechanism, but it has been lacking a comprehensive study to rule out the key factors applicable to other polymer system. Herein, we systematically investigated from the phase behaviors of covalent network/polymer mixtures and toward the resulting porous morphology with various polymers. Physicochemical properties of the polymers, compositions in the blend, and kinetic matching of phase separation with gelation dynamics by solvent evaporation were critical in the morphology evolution. |
