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
Characterization of polymer systems based on sulfonated poly(2,6-dimethyl-1,4-phenylene oxide)
✍ Scribed by J L Acosta; J L Garcia Fierro; A Linares; M J Casanova
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 90 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0959-8103
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In this article, the chemical modification of poly(2,6-dimethyl-l,4-phenylene oxide) (PPO) was carried out by incorporating a n amine group into the PPO backbone. A maximum monosubstitution degree of 65 mol % was reached. The effects of reaction conditions on the functional group content in PPO is d
The thermal degradation and kinetics of poly(2,6-dimethylphenylene oxide) (PPO) were studied by high-resolution thermogravimetry. The thermogravimetry measurements were conducted at an initial heating rate of 50°C min Ϫ1 , resolution 4.0, and sensitivity 1.0 in both nitrogen and air from room temper
The gas permeability of 0, and N, for homogeneous and composite membranes prepared from poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) samples with different molecular weight parameters was investigated. Temperature dependencies of gas permeability coefficients and permselectivity were determined for