Molecular weight of poly(2,6-dimethyl-1,4-phenylene oxide) as determined by carbon-13 NMR spectroscopy
โ Scribed by Reuben, Jacques; Biswas, Atanu
- Book ID
- 126004079
- Publisher
- American Chemical Society
- Year
- 1991
- Tongue
- English
- Weight
- 246 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0024-9297
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๐ SIMILAR VOLUMES
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
The oxidation of Ix)ly ( 2,6-dimethyl-C, 4-phenylene ether) (PPE) during polymerization has been examined as a function of molecular weight, using spectroscopic techniques. The visible light absorption and the IR absorption at 1660cm -I increased as the molecular weight decreased. A most probable ch