Liquid-liquid phase separation in multicomponent polymer systems. XXVII. Determination of the pair-interaction function for polymer blends
✍ Scribed by Koningsveld, Ronald; MacKnight, William J.
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 313 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0959-8103
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✦ Synopsis
It is demonstrated that estimation of the pair-interaction function from polymer-blend cloud points cannot yield meaningful values if data are restricted to a single blend. Additional information is required, such as cloud points in another blend made up of samples of the same two polymers di †ering in molar mass or, alternatively, scattering data on the original blend. Information obtained from melting points of a crystallizable constituent in the blend is insigniÐcant in this respect. Molar-mass distributions in the constituents of the blend complicate the analysis, and must be known in considerable detail.