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The thermally induced phase separation (TIPS) method is regaining momentum as a competitive platform to fabricate highly porous microporous membranes. In membrane technology, there has been an active search for more sustainable ways to fabricate polymeric membranes using green solvents. Rhodiasolv PolarClean® is a recently identified environmentally friendly TIPS solvent that shows high potential for the preparation of microporous PVDF membranes. Interestingly, its high miscibility with water induces a nonsolvent-induced phase separation (NIPS) effect on the membrane surface and this simultaneous NIPS-TIPS effect is referred to as the combined NIPS-TIPS (N-TIPS) method. In this work, a thorough investigation was carried out to understand the underlying phenomena in the membrane formation kinetics during the N-TIPS process. It was found that the NIPS and TIPS morphology can be tailored to …