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Preparation and characterization of polysulfone–cyclodextrin composite nanofiltration membrane: Solvent effect
Author(s) -
Baruah Kundan,
Hazarika Swapnali,
Borthakur Somiron,
Dutta Narendra Nath
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36711
Subject(s) - polysulfone , membrane , solvent , dimethyl sulfoxide , phase inversion , polymer chemistry , chemical engineering , solubility , formamide , polymer , casting , hildebrand solubility parameter , materials science , chemistry , organic chemistry , composite material , biochemistry , engineering
α‐Cyclodextrin membranes were prepared by the phase inversion method using four types of casting solvents such as N‐methyl pyrrolidone (NMP), dimethyl sulfoxide (DMSO), dimethyl acetamide (DMAc), and dimethyl formamide (DMF) herein‐after termed as α‐CD‐NMP, α‐CD‐DMSO, α‐CD‐DMAc, and α‐CD‐DMF, respectively. The membranes were characterized by IR, XRD, TGA‐DTA, DSC, and SEM analysis and show that solvents like NMP, DMA, DMF give good uniform morphological membranes and are better than that of DMSO. Thermal decompositions of the pure polymer and composite membranes indicate different range of thermal degradation of the membrane. This study reveals that the casting solvents NMP, DMF, DMAC have nearly same significant effect on morphology and other properties of the membranes. This is explained in terms of demixing behavior of the polymer and the combined effect of solvent volatility and polymer–solvent interactions as estimated from Hansen solubility parameter. Solvent hydrophobicity also affects the performance of the membrane and can be determined in terms of water permeability. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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