Preparation and characterization of nanofiltration composite membranes using polyacrylonitrile (PAN). II. Preparation and characterization of polyamide composite membranes

• DOI: 10.1002/app.1387
• Publication Date: 2002-08-25T22:35:08Z
• Authors: Nam‐Wun Oh; Jonggeon Jegal; Kew‐Ho Lee
• Keywords: Polyacrylonitrile; Interfacial polymerization; Nanofiltration

Abstract Polyamide (PA) composite membranes in which PA active layers were interconnected with support via the formation of ionic bonds prepared by interfacial polymerization piperazine (PIP) trimesoyl chloride (TMC) on surfaces microporous polyacrylonitrile (PAN) supports containing carboxylic acid groups. Formation through an acid‐base reaction between NH group PIP and COOH was studied using FTIR‐ATR spectroscopy. Variation surface morphologies that induced presence observed a FESEM AFM. Permeation tests various feed solutions such as PEG 600, Na 2 SO 4 , MgSO MgCl NaCl carried out to see how characteristics PAN affected flux rejection corresponding membranes. Chemical stabilities compared conventional membrane, alcohol solutions. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 2729–2736,