Counter-ion effects on poly(propylene) microstructure prepared using ansa-metallocene catalysts

American Chemical Society, Polymer Preprints, Division of Polymer Chemistry

Volumn 43, Issue 1, 2002, Pages 305-306

  Mohammed, M ^a   Xin, S ^a   Nele, M ^a   Al Humydi, A ^b   Collins, S ^b  

^a UNIVERSITY OF WATERLOO   (Canada)

^b The University of Akron   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0042047179     PISSN: 00323934     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (20)

1. For reviews on metallocene-catalyzed propylene polymerization see a) Coates, G.W. Chem. Rev. 2000, 100, 1223.
2. b) Resconi, L.; Cavallo, L.; Fait, A.; Piemontesi, F. Ibid. 2000, 100, 1253.
3. c) Brintzinger, H.-H.; Fischer, D.; Mülhaupt, R.; Rieger, B.; Waymouth, R. M. Angew. Chem., Int. Ed. Engl. 1995,34, 1143.
4. Nele, M.; Mohammed, M.; Xin, S.; Collins, S.; Dias, M. L.; Pinto, J. C. Mucromolecules 2001, 34, 3830.
5. b) Nele, M.; Collins, S.; Dias, M. L.; Pinto, J. G.; Lia S.; Waymouth, R. M. Mucromolecules 2000, 33, 1249.
6. For earlier work that employs probability-based models see c) Farina, M.; DiSilvestro, G.; Sozzani, P. Mucromolecules. 1993, 26, 946.
7. d) Farina, M.; DiSilvestro, G.; Terragni, A. Ibid. 1995, 196, 353
8. e) DiSilvestro, G.; Sozzani, P.; Terragni, A. Macromol. Chem. Phys. 1996, 197, 3209.
9. For a review of counter-ion effects in olefin polymerization see Chen, X.-Y.; Marks, T. J. Chem. Rev. 2000,100, 1391.
10. Chen, X.-Y.; Metz, M. V.; Li, L.; Stern, C. L.; Marks, T. J. J. Am. Chem. Soc. 1998,120, 6287.
11. a) Chen, M.-C.; Marks, T. J. Abstr. Pap. 22st ACS National Mtg. 2001, San Diego, CA, IN-65.
12. b) Ewen, J. A. in Catalyst Design for Tailor-Made Polyolefins, K. Soga and M. Terano, Eds., Elsevier: Tokyo, 1994, pp. 405-410.
13. c) Herfert, N.; Fink, G. Makromol. Chem. 1992, 193, 773.
14. Giardello, M. A.; Eisen, M.S.; Stern, C. L.; Marks, T. J. J. Am. Chem. Soc. 1995, 117, 12114 and references therein
15. Bravakis, A. M.; Bailey, L. E.; Pigeon, M.; Collins, S. Mucromolecules 1998, 31, 1000 and references therein.
16. a) Gauthier, W. J.; Corrigan, J. F.; Taylor, N. J.; Collins, S. Mucromolecules, 1995, 28, 3771.
17. b) Herrmann, W. A.; Morawietz, M. J. A.; Priermeier, T. J. Organomet. Che m. 1996, 506, 351.
18. c) Kim, I.; Jordan, R. F. Macromolecules 1996, 29, 489 and references therein.
19. Williams, V. C.; Dai, C.; Li, Z.; Collins, S.; Piers, W. E.; Clegg, W.; Elsegood, M. R. J.; Marder, T. B. Angew. Chem., Int. Ed. 1999,38, 3695.
20. 3 (≤ OH content of the solvent) is beneficial in some cases, in that BHT (2, 6-di-t-butyl-4- methlyphenol) is produced on hydrolysis of MAD, and this compound may interfere with polymerization catalysis. R. Stapleton, B. Galan, A. Humydi and S. Collins, manuscript in preparation.