Desalination properties of a novel composite membrane prepared by electrospinning method

作者：Kim Young Jea; Shim Hee Sang; Lee Jae Suk^*

来源：Desalination and Water Treatment, 2010, 15(1-3): 84-91.

DOI：10.5004/dwt.2010.1671

• Electrospinning
• Desalination
• Composite membrane
• Poly(arylene ether)

A novel composite membrane for potential desalination was prepared by coating of sulfonated poly(arylene ether) on the non-woven web. The non-woven web was made of end-group cross-linkable flurorinated poly(arylene ether) nanowires fabricated by electrospinning method. The crosslinked non-woven web was obtained by covalent crosslinking among ethynyl groups at the polymer chain end via thermal curing. The salt rejection and permeability of the crosslinked non-woven web were controlled by varying degrees of sulfonation (DS) of sulfonated poly(arylene ether). The compostie membranes show the increase of NaCl rejection as DS decreases from 20% to 60%, while water permeability decreases due to the increase of hydrophilicity. The order of salt rejection was as follows: Na(2)SO(4) (88.4%), NaCl (79.3%), MgSO(4) (70.2%), Mg(2)Cl(2) (62.3%).

• 出版日期2010-3