Extrapolation of short-chain oligomers melting temperatures at infinite molecular weight
✍ Scribed by V. Carlier; J. Devaux; R. Legras; D. J. Blundell
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 196 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0887-6266
No coin nor oath required. For personal study only.
✦ Synopsis
The determination of the thermodynamic equilibrium melting point of a polymer (T m 0 ) by the extrapolation of the melting temperature of its oligomers has been extensively studied in the case of n-alkanes. Nevertheless, a recent publication 1 underlines the difficulty to realize this extrapolation. A new method is presented here, leading to an acceptable extrapolation of PE. The equation proposed may give a better value of T m because the premelting phenomena is being considered in its development. Moreover, this method can be easily extended to a larger number of polymers, such as PEO, PEEK, PPS, etc.