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Strain-Induced Changes of Free Volume Measured by Positron Lifetime Spectroscopy in Ultrahigh Molecular Weight Polyethylene

✍ Scribed by Monge, M. A.; Díaz, J. A.; Pareja, R.


Book ID
126219841
Publisher
American Chemical Society
Year
2004
Tongue
English
Weight
146 KB
Volume
37
Category
Article
ISSN
0024-9297

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Positron lifetime measurements were carried out in a series of poly(ethylene oxide)-PEO-of different average molecular weights (M w ): 1000, 1500, 6000, 10,000, 300,000, and 4 M. The mean radius (R ) and the mean free volume size (V f ) values were determined using a semiempirical equation that corr