Formation of Particulate PVDF Membranes by Immersion Precipitation from 1-Octanol/Dimethylformamide/PVDF System

[[abstract]]The equilibrium phase behavior at 25.degree.C of poly(vinylidene fluoride) (PVDF) and a terpolymer of vinylidene fluoride (VDF)-hexafluoropropylene (HFP)- tetrafluoroethylene (TFE) in mixtures of dimethyl formamide(DMF) (solvent) and Octanol (nonsolvent) were studied. Membranes with various particulate morphologies were prepared and their formation mechanism were related to the obtained phase diagram.[[sponsorship]]清華大學化學工程系; 中華民國高分子學會; 行政院國家科學委員會工程科技推展中心[[conferencedate]]19970626~19970627[[booktype]]紙本[[iscallforpapers]]Y[[conferencelocation]]新北市, 臺