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An-Hwa Dwan
Researcher at Columbia University
Publications - 7
Citations - 333
An-Hwa Dwan is an academic researcher from Columbia University. The author has contributed to research in topics: Membrane & Ternary operation. The author has an hindex of 5, co-authored 6 publications receiving 316 citations.
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PVDF membrane formation by diffusion‐induced phase separation‐morphology prediction based on phase behavior and mass transfer modeling
TL;DR: In this paper, the equilibrium phase behavior of water (nonsolvent)-DMF (solvent)-PVDF system at 25°C was investigated via both theoretical and experimental approaches.
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An improved model for mass transfer during the formation of polymeric membranes by the immersion-precipitation process
TL;DR: In this article, an analysis of the ternary diffusion process encountered in the formation of a cellulose acetate polymeric membrane by a direct immersion-precipitation of polymeric solutions in a nonsolvent bath is presented.
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Membrane formation by isothermal precipitation in polyamide-formic acid-water systems. I: Description of membrane morphology
TL;DR: In this article, a phase separation by nucleation and growth can be initiated for a liquid-liquid phase separation process, a crystallization process, or a combined process, depending on the composition of the polymer solution and nonsolvent bath.
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Membrane formation by isothermal precipitation in polyamide‐formic acid‐water systems II. Precipitation dynamics
TL;DR: In this paper, an analysis of the ternary diffusion process encountered in the formation of aliphatic polyamide membranes such as Nylon-66 by direct immersion-precipitation of a polymeric solution in a nonsolvent bath is presented.
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Isothermal phase behavior of Nylon‐6, ‐66, and ‐610 polyamides in formic acid–water systems
TL;DR: The binodal envelope, the tie lines, and the crystallization isotherms at 25°C are given for each of the ternary systems as discussed by the authors, for polyamide homopolymers, Nylon-6, -66, -610, and for the nylon-66/610/6 terpolymer in formic acid water systems.