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
Nonexponential proton relaxation from cross-correlation in dissolved poly(2,6-dimethyl-1,4-phenylene oxide)
โ Scribed by Ronald P Lubianez; Alan Anthony Jones
- Publisher
- Elsevier Science
- Year
- 1980
- Weight
- 686 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0022-2364
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๐ SIMILAR VOLUMES
Molecular relaxation behavior in terms of the a, b, and g transitions of miscible PS/PPO blends has been studied by means of DMTA and preliminary work has been carried out using DSC. From DSC and DMTA (by tan d), the observed a relaxation ( T a or T g ) of PS, PPO, and the blends, which are intermed
Electrical properties of poly (2,6-dimethyl-1,4-phenylene oxide) (PPO) have been studied by measuring thermally stimulated discharge currents. Depolarization behavior of poled PPO film exhibits temperature-and time-dependent single relaxation around 468 K which is attributed to dipole reorientation.