writer：Wenqiang Huang, Xinlin Yang
keywords：chromatography; matrix; membranes; separation
source：期刊
specific source：J. Appl. Polym. Sci., 96 (6), 2117-2131 (2005). DOI: 10.1002/app.21135
Issue time：2005年
A chloromethylation polysulfone (CMPSF), having good properties of membrane formation, spinnability, and reactive groups, was synthesized with Friedel–Crafts reaction,
which could be used as reactivity matrix membrane materials. The effects of ZnCl2 quantity, monochloro methyl ether quantity, reaction time, and reaction temperature on the chlorinity of CMPSF were investigated. The CMPSF plate matrix membranes were prepared with phase inversion by use of the CMPSF/additive/N,N
-dimethylacetamide (DMAc) casting solution and CMPSF as membrane materials. The focus of this study was primarily concerned with the relationship among such factors as species and contents of additives, CMPSF content in casting solutions, and temperature of solutions, and the morphological structure of the membrane, pore size, porosity, and water flux of the membrane. It was concluded that these factors had obvious effects on the structure
and the performance of the CMPSF matrix plate membrane, which could be improved within a wide range by changing the thermodynamic conditions of the casting solution. The effects of coagulation conditions on the microstructure and performance of CMPSF plate matrix membrane were also studied. It was found that the water flux of the CMPSF plate matrix membrane was at a maximum value by use of 10% DMAC solution as coagulation bath.