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In order to control surface pore sizes of polyacrylonitrile (PAN) ultrafiltration membranes and their distribution, the present work concerns the graft-modification of membranes by Ar low-temperature plasma. Some typical plasma irradiation conditions such as plasma power of 30–40 W, irradiation time of 60 s and pressure of 15–20 Pa were experimentally selected by our previous experiments. N-vinylpyrrolidone...
Ar low-temperature plasma treatment and subsequent monomer grafting in vapor phase were employed to prepare hydrophobic nanofiltration (NF) membranes from polyacrylonitrile (PAN) ultrafiltration (UF) membranes. FTIR–ATR spectroscopy, XPS analysis and contact angle measurement were used to characterize the chemical and physical changes of PAN UF membranes modified by plasma-induced graft polymerization...
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