Positron Lifetime Studies of the Local Free Volume in Elastomer Modified Thermoplastics
β Scribed by Dlubek, G. ;Fretwell, Hellen M. ;Alam, A.
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 113 KB
- Volume
- 167
- Category
- Article
- ISSN
- 0031-8965
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π SIMILAR VOLUMES
Positron lifetime measurements, performed in the temperature range 80-300 K, are reported for polyethylene (PE) and polytetrafluoroethylene (PTFE). The lifetime spectra have been analyzed using the data processing routines LIFSPECFIT and MELT. Two long-lived components appear, which are attributed t
## Abstract Polyamide 6 (PA6) was studied using positron annihilation lifetime spectroscopy (PALS). From the __ortho__βpositronium lifetime Ο~3~ the size of local free volumes (holes) was estimated. In dry PA6 the mean hole volume __v__ varied between 70 Γ 3 and 128 Γ ^3^ when the temperature increas
Positron lifetime spectroscopy has been applied to study the temperature dependence of free-volume properties in a solvent-free polymer-salt complex polyethylene oxide (PEO) doped with ammonium iodide (NH 4 I, with NH / 4 /EO Γ 0.076) in the temperature range of 298-353 K. The observed lifetime spec