Phase boundaries and crystallization of polyethylene in n-pentane and n-pentane + carbon dioxide fluid mixtures

Industrial and Engineering Chemistry Research

Volumn 45, Issue 4, 2006, Pages 1478-1492

  Upper, Gerd ^a,b   Zhang, Wei ^a,c   Beckel, Daniel ^a,d   Sohn, Seungman ^a,e   Liu, Kun ^a   Kiran, Erdogan ^a  

^a State University   (United States)

^b UNIVERSITY OF KARLSRUHE   (Germany)

^c Advanced and Applied Polymer Processing Institute   (United States)

^d ETH ZURICH   (Switzerland)

^e E INK CORPORATION   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AGGLOMERATES; CRYSTALLIZATION TIME; PHASE BOUNDARY; TRANSMITTED LIGHT;

CARBON DIOXIDE; CRYSTALLIZATION; DENSITY (SPECIFIC GRAVITY); DIFFERENTIAL SCANNING CALORIMETRY; MICROSCOPIC EXAMINATION; MORPHOLOGY; PHASE EQUILIBRIA; SCANNING ELECTRON MICROSCOPY; THERMODYNAMIC PROPERTIES;

POLYETHYLENES;

CARBON DIOXIDE; CRYSTALLIZATION; DENSITY (SPECIFIC GRAVITY); DIFFERENTIAL SCANNING CALORIMETRY; MICROSCOPIC EXAMINATION; MORPHOLOGY; PHASE EQUILIBRIA; POLYETHYLENES; SCANNING ELECTRON MICROSCOPY; THERMODYNAMIC PROPERTIES;

EID: 33644750370     PISSN: 08885885     EISSN: None     Source Type: Journal    
DOI: 10.1021/ie050620e     Document Type: Article

References (29)

1. Kiran, E. Polymer formation, modification and processing in or with supercritical fluids. In Supercritical Fluids. Fundamentals for Application; Kiran, E., Levelt Sengers, J. M. H., Eds.; Kluwer Academic Publishers: Dordrecht, The Netherlands, 1994; pp 541-588.
2. Kiran, E. Polymer miscibility and kinetics of pressure-induced phase separation in near-critical and supercritical fluids. In Supercritical Fluids. Fundamentals for Application; Kiran, E., Debenedetti, P. G., Peters, C. J., Eds.; Kluwer Academic Publishers: Dordrecht, The Netherlands, 2000; pp 167-192.
3. Kiran, E.; Liu, K. The Miscibility and Phase Behavior of Polyethylene with Poly(dimethylsiloxane) in Near-Critical Pentane. Korean J. Chem. Eng. 2002, 19, 153.
4. Chan, A.; Adidharma, H.; Radosz, M. Fluid-Liquid Transitions of Poly(ethylene-co-octene-1) in Supercritical Ethylene Solutions. Ind. Eng. Chem. Res. 2000, 39, 4370.
5. Pan, C.; Radosz, M. Phase Behavior of Poly(ethylene-co-hexene-1) Solutions in Isobutane and Propane. Ind. Eng. Chem. Res. 1999, 38, 2842.
6. Chan, K.; Adidharma, H.; Radosz, M. Fluid-Liquid and Fluid-Solid Transitions of Poly(ethylene-co-octene-1) in Sub- and Supercritical Propane Solutions. Ind. Eng. Chem. Res. 2000, 39, 3069.
7. Chan, A.; Radosz, M. Fluid-Liquid and Fluid-Solid-Phase Behavior of Poly(ethylene-co-hexene-1) Solutions in Sub- and Supercritical Propane, Ethylene, and Ethylene + Hexene-1. Macromolecules 2000, 33, 6800.
8. Han, S. J.; Lohse, D. J.; Radosz, M.; Sperling, L. H. Short Chain Branching Effect on the Cloud-Point Pressures of Ethylene Copolymers in Subcritical and Supercritical Propane. Macromolecules 1998, 31, 2533.
9. Chan, A.; Hemmingsen, P.; Radosz, M. Fluid-Liquid and Fluid-Solid Transitions of Tetracontane in Propane. J. Chem. Eng. Data 2000, 45, 362.
10. Weidner, E.; Wiesmet, V. Phase Equilibrium (solid-liquid-gas) in Binary Systems of Polyethylenglycols, Polyethylenglycoldimethylether with Carbon Dioxide, Propane and Nitrogen. CISF 99, 5th Conference on SCF and their Application 1999, 521.
11. Weidner, E.; Knez, Z.; Wiesmet, V.; Kokol, K. Phase Equilibrium (solid-liquid-gas) in the System of Polyethyleneglycols-Nitrogen. ITSSF 97, 4th Conference on SCF and their Application 1997, 409.
12. Stejny, J.; Whitfield, A. F.; Pritchard, G. M.; Hill, M. J. Crystallization of a linear aliphatic polyester from solution in supercritical carbon dioxide. Polymer 1998, 39, 4175.
13. Aulov, V. A. Structural Aspects of Influence of High Pressure on Polyethylene in High-Pressure Chemistry and Physics of Polymers; Kovarskii, A. L., Ed.; CRC Press: Boca Raton, FL, 1994; pp 23-57.
14. Miyata, S.; Arikawa, T.; Sakaoku, K. Crystallization of Polyethylene from Xylene Solutions under High Pressure. Anal. Calorim. 1974, 3, 603.
15. Yasuniwa, M.; Tsubakihara, S.; Nakafuku, C. Molecular Weight Effect on the High-Pressure Crystallization of Polyethylene. Polym., J. 1988, 20, 1075.
16. Yasuniwa, M.; Yamaguchi, M.; Nakamura, A.; Tsubakihara, S. Melting and Crystallization of Solution Crystallized Ultra-High Molecular Weight Polyethylene under High Pressure. Polym. J. 1990, 22, 411.
17. Nakafuku, C.; Sugiuchi, T. Effect of pressure on the phase diagram of binary mixtures of n-alkanes. Polymer 1993, 34, 4945.
18. Nakafuku, C. Pressure Change of the Phase Diagram of the Binary Mixture of Low Molecular Weight Polyethylenes. Polym. J. 1995, 27, 917.
19. Höhne, G. W. H.; Blankenhorn, K. High-pressure DSC investigations on n-alkanes, n-alkane mixtures and polyethylene. Thermochim. Acta 1994, 238, 351.
20. Shulgin, A. I.; Godovsky, Yu. K. DTA measurement on polymers under high pressure, polyethylene and poly(diethylsiloxane). J. Therm. Anal. 1992, 38, 1243.
21. Höhne, G.; Schawe, J. E. K.; Shulgin, A. I. The phase transition behavior of linear polyethylenes at high pressure. Thermochim. Acta 1997, 296, 1.
22. Seeger, A.; Freitag, D.; Friedel, F.; Luft, G. Melting point of polymers under high pressure. Part I: Influence of the polymer properties. Thermochmica Acta 2004, 424, 175-181.
23. 2 at high pressures. J. Appl. Polym. Sci. 2003. 89, 2201-2209.
24. Upper. G.; Beckel, D.; Zhang, W.; Kiran, E. High-Pressure Crystallization in Supercritical or Dense Fluids. In Proceedings of the 6th International Symposium on Supercritical Fluids, Versailles, France, April 28-30, 2003; Institut National Polytechnique de Lorraine: Vandeuvre. Cedex, France, 2003;
25. Vol. 3-Materials Processing, pp 1509-1514.
26. Zhang, W.; Kiran, E. High-Pressure Crystallization and Melting of Polyethylene in n-Pentane. J. Supercrit. Fluids, accepted for publication.
27. Zhang, W.; Upper, G.; Kiran, E. Thermal and Morphological Properties of Polyethylene Crystals Formed in n-Pentane Under High Pressure. Presented at 7th International Symposium on Supercritical Fluids, Orlando, Florida, May 1 -4, 2005.
28. Mathot, V. B. F.; Pijpers, M. F. J. Heat capacity, enthalpy and crystallinity for a linear polyethylene obtained by DSC. J. Therm. Anal. 1983, 28, 349.
29. Müller, A. J.; Arnal, M. L. Thermal fractionation of polymers. Prog. Polym. Sci. 2005, 30, 559-603.