## Abstract A series of anion exchange membranes with pyridinium groups were prepared by aminating 100% bromomethylated poly(2,6βdimethylβ1,4βphenylene oxide) with 4βvinylpyridine. These membranes exhibited higher ion exchange capacity, lower water uptake, lower area resistance, and better thermal
Fundamental studies of homogeneous cation exchange membranes from poly(2,6-dimethyl-1,4-phenylene oxide): Membranes prepared by simultaneous aryl-sulfonation and aryl-bromination
β Scribed by He Yu; Tongwen Xu
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 82 KB
- Volume
- 100
- Category
- Article
- ISSN
- 0021-8995
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Poly(2,6-dimethyl-1,4 -phenylene oxide) (PPO) is a chemically resistant polymer and, therefore, an attractive material for the formation of membranes. However, membranes of unmodified PPO prepared by an immersion precipitation possess very low hydraulic permeabilities at the filtration processes. T
Thin film composite membranes were prepared by coating a thin layer of sulfonated poly ( 1,4dimethyl-2,6-phenylene oxide) polymer on the surface of a polysulfone ultrafiltration membrane. The membrane performance was studied when the sulfonate was either in the hydrogen form or loaded fully with an
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