✦ LIBER ✦
The vapour pressure of solvent above swollen polymer networks in relation to rubber elasticity theory
✍ Scribed by G. Allen; P. Egerton; D.J. Walsh
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 341 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0014-3057
No coin nor oath required. For personal study only.
✦ Synopsis
The difference between the vapour pressure of solvent above swollen crosslinked polyurethanes and that above linear polyurethane solutions has been determined experimentally. Comparison of the data over a range of volume fractions of solvent has enabled an estimate to be made of the factor B/A, the ratio of the "front factors" in the equation for the free energy of deformation of a crosslinked network. Previous experimental evidence, based on the modulus of crosslinked elastomers, has suggested that A is ½. The results of this work suggest that A = B = ½.