Kinetics of long chain branching in continuous solution polymerization of ethylene using constrained geometry metallocene

Macromolecules

Volumn 31, Issue 25, 1998, Pages 8677-8683

  Wang, Wen Jun ^a   Yan, Dajing ^a   Zhu, Shiping ^a   Hamielec, Archie E ^a  

^a MCMASTER UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVATION ENERGY; ALUMINUM COMPOUNDS; BORON COMPOUNDS; CATALYSTS; MOLECULAR ORIENTATION; MOLECULAR STRUCTURE; MONOMERS; ORGANOMETALLICS; POLYMERIZATION; RATE CONSTANTS; SYNTHESIS (CHEMICAL); TITANIUM COMPOUNDS;

CONTINUOUS STIRRED-TANK REACTORS (CSTR); MELT FLOW INDEX; METALLOCENE; METHYLALUMINOXANE; POLYDISPERSITY INDEX; SOLUTION POLYMERIZATION; TRISPENTAFLUOROPHENYLBORON;

POLYETHYLENES;

EID: 0032302427     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma980914u     Document Type: Article

References (23)

1. Charpentier, P. A.; Zhu, S.; Hamielec, A. E.; Brook, M. Ind. Eng. Chem. Res. 1997, 36, 5074.
2. Small, P. A. Adv. Polym. Sci. 1975, 18, 1.
3. Lai, S. Y.; Wilson, J. R.; Knight, G. W.; Stevens, J. C.; Chum, P. W. S. (to Dow Chemical Co.). Elastic substantially linear olefin polymers. U.S. Patent 5,272,236, 1993.
4. Knight, G. W.; Lai, S. Polyolefins VIII. Technol. Pap., Reg. Technol. Conf.-Soc. Plast. Eng. 1993, 28.
5. Shiono, T.; Moriki, Y.; Soga, K. Macromol. Symp. 1995, 97, 161.
6. Woo, T. K; Fan, L.; Ziegler, T. Organometallics 1994, 13, 2252.
7. Swogger, K.; Kao, W. C. I. Polyolefins VIII. Technol. Pap., Reg. Technol. Conf.-Soc. Plast. Eng. 1993, 14.
8. Soares, J. P.; Hamielec, A. E. Macromol. Theory Simul. 1996, 5, 547.
9. Brant, P.; Canich, J. A. M. Ethylene/Longer α-Olefin Copolymers. U.S. Patent 5,475,075, 1995.
10. Brant, P.; Canich, J. A. M.; Merrill, N. A. (to Exxon Chemical Patents Inc.). Ethylene/Branched Olefin Copolymers. U.S. Patent 5,444,145, 1995.
11. Sugawara, M. In Proceedings of the 4th International Business Forum on Specialty Polyolefins; Houston, TX, 1994; p 37.
12. ASTM D 5017-91. Determination of Linear Low-Density Polyethylene (LLDPE) Composition by Carbon-13 Nuclear Magnetic Resonance. 1991.
13. De Footer, M.; Smith, P. B.; Dohrer, K. K.; Bennett, K. F.; Meadows, M. D.; Smith, C. G.; Schouwenaars, H. P.; Geerards, R. A. J. Appl. Polym. Sci. 1991, 42, 399,
14. Hansen, E. W.; Blom, R.; Bade, O. M. Polymer 1997, 38, 4295.
15. 13C NMR Study of Radiation-Induced Structural Changes in Polyethylene. In ACS Symposium Series 249; Randall, J. C., Ed.; American Chemical Society: Washington, DC, 1984; Chapter 16.
16. ASTM D 1238-90b. Flow Rates of Thermoplastics by Extrusion Plastometer. 1990.
17. Yan, D.; Wang, W.-J.; Zhu, S.; Hamielec, A. E. Rheological and Mechanical Properties of Long-Chain Branched Polyethylene Produced by High-Temperature Solution Polymerization Using Dow's Constrained Geometry Catalysts. Polymer, in press.
18. Zhu, S.; Li, D. Macromol. Theory Simul. 1997, 6, 793.
19. Wang, W.-J.; Yan, D.; Zhu, S.; Hamielec, A. E. Long Chain Branching in Ethylene Polymerization Using Binary Metallocene Catalyst System. Submitted for publication in Polym. React. Eng. 1998.
20. De Souza, R. F.; Mauler, R. S.; Simon, L. C.; Nunes, F. F.; Vescia, D. V. S.; Cavagnolli, A. Macromol. Rapid Commun. 1997, 18, 795.
21. Deng, L.; Margl, P.; Ziegler, T. J. Am. Chem. Soc. 1997, 119, 1094.
22. Johnson, L. K.; Killian, C. M.; Brookhart, M. J. Am. Chem. Soc. 1995, 117, 6414.
23. Musaev, D. G.; Froese, R. D. J.; Svensson, M.; Morokuma, K. J. Am. Chem. Soc. 1997, 119, 367.