Structure Formation Due to Non-Equilibrium Liquid-Liquid Phase Separation in Polypropylene Solutions
The morphology of polymeric materials1 is strongly influenced by liquid-liquid phase separation and crystallization. In general, there is a possibility that the liquid-liquid phase separation process is coupled with the crystallization process. The equilibrium state of semicrystalline polymer-solvent mixtures is presented by depiction with the phase diagrams as shown in Figure 1. The liquid-liquid phase separation region is located above and below the equilibrium liquid-solid transition with poor and good solvents, respectively. The cooperation of two phenomena which both depend on the non-equilibrium conditions may produce new structures, which are important from both scientific and industrial points of view.
KeywordsCrystallization Platinum Hexane Polyethylene Boiling
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- 1.Utracki, L. A. “Polymer Alloys and Blends”, Hanser Publishers, 1989.Google Scholar
- 3.Schaaf, P.; Lotz, B.; Wittman, J. C. Polymer 1987, 28, 193.Google Scholar
- 5.Cahn, J. W.; Hilliard, J. E. J. Chem. Phys. 1959 31,688.Google Scholar
- Keith, H. D.; Padden, F. J., Jr. J. Appl. Phys. 1963, 34, 2409.Google Scholar
- 7.Cahn, J. W.; Hilliard, J. E. J. Appl. Phys. 1958, 29, 258.Google Scholar
- Cahn, J. W. J. Chem. Phys. 1965 42,93.Google Scholar
- 10.Lee, H. K. Ph.D. Dissertation, Polytechnic University, 1992.Google Scholar