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
Synthesis and characterization of aminated poly(2,6-dimethyl-1,4-phenylene oxide)
โ Scribed by Yan Pan; Yuhui Huang; Bing Liao; Guangmin Cong
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 323 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
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 discussed. The aminated PPO obtained was characterized by FTIR, 'H-NMR spectroscopy, nitrogen analysis, DSC, solubility test, and Xray diffraction studies.
๐ SIMILAR VOLUMES
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 50ยฐC min ฯช1 , resolution 4.0, and sensitivity 1.0 in both nitrogen and air from room temper
Gas sorption and transport properties at 35ะC have been reported for a series of UV-irradiated films of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO). UV irradiation induced crosslinking in all films. The gas permeability was reduced upon crosslinking while significant increases in gas permselectivit