Phase equilibrium of polydispersed polymer solution and fractionation
β Scribed by Okamoto, H. ;Sekikawa, K.
- Book ID
- 104531985
- Publisher
- John Wiley and Sons
- Year
- 1961
- Weight
- 532 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0022-3832
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β¦ Synopsis
Abstract
Phase equilirium of a polydispersed polymer solution was investigated. Experiments on the system of linear polyethylene, xylene, and ethylene glycol were found to be approximately described by Flory's theory. To obtain a more precise description, the authors give a modification of Flory's relation. Methods by which the molecular size distribution of the fractionated polymer can be calculated from that of the unfractionated are proposed. Conditions favorable to effective fractionation are also briefly discussed.
π SIMILAR VOLUMES
## Abstract A technique is described for performing phase boundary calculations (cloudβpoint calculations) for solutions of a polydisperse polymer in a solvent component. The polymer is characterized as a potentially large number of individual components. The technique employs the Newton method for
## Abstract Fractionation of continuously distributed homologous mixtures is described in terms of molecular distributions. The concepts apply to phase equilibrium in vaporβliquid hydrocarbon mixtures and solβgel polymer mixtures. Models of both differential and finite phaseβequilibrium separations