✦ LIBER ✦
On the precipitation threshold of solutions of heterogeneous polymers in Flory-Huggins systems with a concentration-dependent pair-interaction parameter
✍ Scribed by Th.W. de Loos; G.A.M. Diepen
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 256 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0014-3057
No coin nor oath required. For personal study only.
✦ Synopsis
Equations are derived for (dT/dq~)p and (dp/dgp)r along the cloud-point curves of solutions of heterogeneous polymers in a single solvent. It is shown that the extreme of the cloud-point curve (the precipitation threshold) can be calculated using these equations, The results of some model calculations on systems obeying the Flory-Huggins equation with a pair-interaction parameter of the form g((9. T, p) = ,qo(T,p) + gt(p + g2q~ 2 are given, revealing the influence of gl and ~t2 on the precipitation threshold.