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Correlations between gas permeation and free-volume hole properties probed by positron annihilation spectroscopy |
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| Authors: | Y. C. Jean J.-P. Yuan J. Liu Q. Deng Hsinjin Yang |
| Abstract: | Free-volume hole sizes, fractions, and distributions in a series of polycarbonate-based polymers are measured by using positron annihilation lifetime (PAL) spectroscopy. Correlations between the obtained free-volume hole properties and gas diffusion coefficients are observed. © 1995 John Wiley & Sons, Inc. |
| Keywords: | positron annihilation positronium free volume hole gas permeation |