Evaluations of polyelectrolyte multilayer membranes assembled by a dynamic layer-by-layer technique
作者： Shulan Ji , Guojun Zhang , Zhongzhou Liu , Yuelian Peng , Zhan Wang
DOI: 10.1016/J.DESAL.2007.09.098
关键词:
摘要: Self-assembly of polyelectrolyte multilayer membranes (PEMMs) by using dynamic layer-by-layer (LBL) adsorption technique was conducted in this study. The polyethyleneimine (PEI) and polyacrylic acid (PAA) were alternatively deposited on the hydrolyzed polyacrylonitrile (PAN) ultrafiltration under a pressure 0.1 MPa. changes membrane surfaces observed atomic force microscopy. It found that regularity PEMMs enhanced after LBL assembly. pervaporation separation behavior various alcohol/water mixtures with alcohols being t-butanol, 2-propanol ethanol are compared relatively wide range feed temperature concentration.
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