Effect of Polyvinylpyrrolidone on Separation Performance of Cellulose Acetate-Polysulfone Blend Membranes
β Scribed by Kumari, Archana; Sarkhel, Gautam; Choudhury, Arup
- Book ID
- 121707437
- Publisher
- Taylor and Francis Group
- Year
- 2013
- Tongue
- English
- Weight
- 816 KB
- Volume
- 50
- Category
- Article
- ISSN
- 1060-1325
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## Abstract Hydrophilic ultrafiltration membranes have been prepared by blending cellulose acetate (CA) as a matrix polymer with increasing concentrations of poly(vinylpyrrolidone) (PVP) using __N,Nβ²__βdimethylformamide as the solvent. It is observed that the presence of PVP beyond 50 wt % in the c
In the present work, N,N-dimethylformamide was chosen as a cosolvent of cellulose acetate (CA) and polyacrylonitrile (PAN). The blend solution showed appropriate viscosity, good membrane-forming property and relative stability.
A modified microfiltration membrane has been prepared by blending a matrix polymer with a functional polymer. Cellulose acetate (CA) was blended with polyethyleneimine (PEI), which was then crosslinked by polyisocyanate, in a mixture of solvents. In the membrane, PEI can supply coupling sites for li