Olefin polymerization using highly congested ansa-metallocenes under high pressure: formation of superhigh molecular weight polyolefins

Macromolecules

Volumn 33, Issue 3, 2000, Pages 754-759

  Suzuki, Noriyuki ^a   Masubuchi, Yuji ^c   Yamaguchi, Yoshitaka ^a,d   Kase, Taira ^b   Miyamoto, Takeshi Ken ^b   Horiuchi, Akira ^c   Mise, Takaya ^a  

^a INST OF PHYS AND CHEMICAL RESEARCH   (Japan)

^b KITASATO UNIVERSITY   (Japan)

^c RIKKYO UNIVERSITY   (Japan)

^d YOKOHAMA NATIONAL UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

CATALYSIS; CATALYSTS; HIGH PRESSURE EFFECTS; MOLECULAR WEIGHT; ORGANOMETALLICS; POLYMERIZATION; POLYOLEFINS; SYNTHESIS (CHEMICAL);

CHAIN TRANSFER PROCESS; METHYLALUMINOXANE; ZIRCONOCENE;

OLEFINS;

EID: 0034620348     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma9917850     Document Type: Article

References (40)

1. For example of patents, see: (a) Ger. Offen. DE 4130299 A1 (BASF A.-G., 1993).
2. (b) Eur. Pat. Appl. EP 612768 A1 (Tosoh Corp., 1994).
3. (c) PCT Int. Appl. WO 9214766 A1 (Exxon Chemical Patents, Inc., 1992).
4. (a) Luft, G.; Batarseh, B.; Cropp, R. Angew. Makromol. Chem. 1993, 212, 157.
5. (b) Bergemann, C.; Cropp, R.; Luft, G. J. Mol. Catal. A: Chem. 1995, 102, 1.
6. (c) Bergemann, C.; Cropp, R.; Luft, G. J. Mol. Catal. A: Chem. 1996, 105, 87.
7. (d) Bergemann, C.; Cropp, R.; Luft, G. J. Mol. Catal. A: Chem. 1997, 116, 317.
8. (e) Bergemann, C.; Luft, G. J. Mol. Catal. A: Chem. 1998, 135, 41.
9. (f) Götz, C.; Luft, G.; Rau, A.; Schmitz, S. Chem. Eng. Technol. 21 1998, 12, 954.
10. (g) Akimoto, A. Metallocenes '95, Int. Congr. Metallocene Polym. 1995, 439.
11. (h) Yano, A.; Akimoto, A. Annu. Technol. Conf. - Soc. Plant. Eng. 1996, 54, 1990.
12. (i) Yano, A.; Sone, M.; Yamada, S.; Hasegawa, S.; Akimoto, A. Macromol. Chem. Phys. 1999, 200, 917.
13. (j) Yano, A.; Sone, M.; Yamada, S.; Hasegawa, S.; Akimoto, A. Macromol. Chem. Phys. 1999, 200, 924.
14. (k) Yano, A.; Sone, M.; Yamada, S.; Hasegawa, S.; Sato, M.; Akimoto, A. Macromol. Chem. Phys. 1999, 200, 933.
15. (l) Bujadoux, G. K. Metallocenes '95, Int. Congr. Metallocene Polym. 1995 37.
16. (m) Folie, B.; Ruff, C. J. Polym. Prepr. 1998, 39 (1), 201.
17. (a) Fries, A.; Mise, T.; Matsumoto, A.; Ohmori, H.; Wakatsuki, Y. Chem. Commun. 1996, 783.
18. (b) Suzuki, N.; Mise, T.; Yamaguchi, Y.; Chihara, T.; Ikegami, Y.; Ohmori, H.; Matsumoto, A.; Wakatsuki, Y. J. Organomet. Chem. 1998, 560, 47.
19. (c) Yamaguchi, Y.; Suzuki, N.; Fries, A.; Mise, T.; Koshino, H.; Ikegami, Y.; Ohmori, H.; Matsumoto, A. J. Polym. Sci., Part A: Polym. Chem. 1999, 37, 283.
20. There have been some reports that describe the reactivity of permethylated ansa-zirconocenes. (a) Lee, H.; Desrosiers, P. J.; Guzei, I.; Rheingold, A. L.; Parkin, G. J. Am. Chem. Soc. 1998, 120, 3255.
21. (b) Lee, H.; Hascall, T.; Desrosiers, P. J.; Parkin, G. J. Am. Chem. Soc. 1998, 120, 5830.
22. Ta complexes: (c) Shin, J. H.; Parkin, G. Chem. Commun. 1999, 887.
23. Jutzi, P.; Dickbreder, R. Chem. Ber. 1986, 119, 1750. See also: Fendrick, C. M.; Schertz, L. D.; Day, V. W.; Marks, T. J. Organometallics 1988, 7, 1828.
24. Jutzi, P.; Dickbreder, R. Chem. Ber. 1986, 119, 1750. See also: Fendrick, C. M.; Schertz, L. D.; Day, V. W.; Marks, T. J. Organometallics 1988, 7, 1828.
25. 4 was found to be very sluggish. Thus, we decided to prepare 3 by hydrogenation.
26. For example, see: Mise, T.; Miya, S.; Yamazaki, H. Chem. Lett. 1989, 1853.
27. 6 since it is likely that the formation of low molecular weight polymers during the transient period causes the higher polydispersities.
28. (a) Miyatake, T.; Mizunuma, K.; Kakugo, M. Macromol. Chem., Rapid Commun. 1989, 10, 349.
29. (b) Miyatake, T.; Mizunuma, K; Kakugo, M. Macromol. Symp. 1993, 66, 203.
30. Miyatake, T. Proceeding of International Symposium on Metalorganic Catalysts for Synthesis and Polymerization, Hamburg, Sept 1998, Poster 49.
31. Sassmannshausen, J.; Bochmann, M.; Rösch, J.; Lilge, D. J. Organomet. Chem. 1997, 548, 23.
32. Germanium: ref 3c, (a) Spaleck, W.; Antberg, M.; Dolle, V.; Klein, R.; Rohrmann, J.; Winter, A. New J. Chem. 1990, 14, 499.
33. (b) Chen, Y.-X.; Rausch, M. D.; Chien, J. C. W. Organometallics 1994, 13, 748.
34. Tin: (c) Herrmann, W. A.; Morawietz, M. J. A.; Herrmann, H.-F.; Küber, F. J. Organomet. Chem. 1996, 509, 115.
35. w = 0.049. Goodness of fit = 0.91. The data were deposited in Cambridge Crystallographic Database Center (CCDC-121721). See the Supporting Information for details.
36. w = 0.044. Goodness of fit = 1.09. The data were deposited in Cambridge Crystallographic Database Center (CCDC-121717). See the Supporting Information.
37. Stehling, U.; Diebold, J.; Kirsten, R.; Röll, W.; Brintzinger, H.-H.; Jüngling, S.; Mülhaupt, R.; Langhauser, F. Organometallics 1994, 13, 964.
38. Acceleration of bimolecular process in organometallic catalysis was reported. See: (a) Reiser, O. Koatsuryoku no Kagaku to Gijutsu 1998, 8 (2), 111 (English).
39. (b) Hillers, S.; Reiser, O. Tetrahedron Lett. 1993, 34, 5265.
40. (c) Trost, B. M.; Parquette, J. R.; Marquart, A. L. J. Am. Chem. Soc. 1995, 117, 3284.