High-activity, single-site catalysts for the alternating copolymerization of CO2 and propylene oxide

Journal of the American Chemical Society

Volumn 124, Issue 48, 2002, Pages 14284-14285

  Allen, Scott D ^a   Moore, David R ^a   Lobkovsky, Emil B ^a   Coates, Geoffrey W ^a  

^a Department of Obstetrics Gynecology   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON DIOXIDE; PROPYLENE OXIDE;

ARTICLE; CATALYSIS; CATALYST; CRYSTAL STRUCTURE; CRYSTALLIZATION; POLYMERIZATION; REACTION ANALYSIS; STEREOSPECIFICITY;

EID: 0037021533     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja028071g     Document Type: Article

References (25)

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5. 2 polymerizations, see: (a) Kuran, W. Prog. Polym. Sci. 1998, 23, 919-992. (b) Super, M.: Beckman, E. Trends Polym. Sci. 1997, 5, 236-240. (c) Darensbourg, D. J.; Holtcamp, M. W. Coord. Chem. Rev. 1996, 153, 155-174.
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16. 2 copolymerization have been described, they exhibit low polymerization activity (< 1 TO/h). (a) Aida, T.; Ishikawa, M.; Inoue, S. Macromolecules 1986, 19, 8-13. (b) Jung, J. H.; Ree. M.: Chang, T. J. Polym. Sci., Polym. Chem. 1999, 37, 3329-3336. (c) Kuran, W.; Listos, T.; Abramczyk, M.; Dawidek, A. J. Macromol. Sci., Pure Appl. Chem. 1998, A35, 427-437. (d) Sarbu, T.; Styranec, T.; Beckman, E. J. Nature 2000, 405, 165-168.
17. 2 copolymerization have been described, they exhibit low polymerization activity (< 1 TO/h). (a) Aida, T.; Ishikawa, M.; Inoue, S. Macromolecules 1986, 19, 8-13. (b) Jung, J. H.; Ree. M.: Chang, T. J. Polym. Sci., Polym. Chem. 1999, 37, 3329-3336. (c) Kuran, W.; Listos, T.; Abramczyk, M.; Dawidek, A. J. Macromol. Sci., Pure Appl. Chem. 1998, A35, 427-437. (d) Sarbu, T.; Styranec, T.; Beckman, E. J. Nature 2000, 405, 165-168.
18. 2 copolymerization have been described, they exhibit low polymerization activity (< 1 TO/h). (a) Aida, T.; Ishikawa, M.; Inoue, S. Macromolecules 1986, 19, 8-13. (b) Jung, J. H.; Ree. M.: Chang, T. J. Polym. Sci., Polym. Chem. 1999, 37, 3329-3336. (c) Kuran, W.; Listos, T.; Abramczyk, M.; Dawidek, A. J. Macromol. Sci., Pure Appl. Chem. 1998, A35, 427-437. (d) Sarbu, T.; Styranec, T.; Beckman, E. J. Nature 2000, 405, 165-168.
19. 2 copolymerization have been described, they exhibit low polymerization activity (< 1 TO/h). (a) Aida, T.; Ishikawa, M.; Inoue, S. Macromolecules 1986, 19, 8-13. (b) Jung, J. H.; Ree. M.: Chang, T. J. Polym. Sci., Polym. Chem. 1999, 37, 3329-3336. (c) Kuran, W.; Listos, T.; Abramczyk, M.; Dawidek, A. J. Macromol. Sci., Pure Appl. Chem. 1998, A35, 427-437. (d) Sarbu, T.; Styranec, T.; Beckman, E. J. Nature 2000, 405, 165-168.
20. Despite the fact that catalysts for poly(propylene carbonate) synthesis are elusive, excellent catalysts for thermodynamically more stable propylene carbonate are available. Paddock, R. L.; Nguyen, S. T. J. Am. Chem. Soc. 2001, 123, 11498-11499 and references therein.
21. 2 to propylene carbonate in unspecified yield. Chisholm, M. H.; Gallucci, J.; Phomphrai, K. Inorg. Chem. 2002, 41, 2785-2794.
22. Darensbourg has previously reported a similar effect using both zinc and chromium catalysts (Darensbourg, D. J.; Yarbrough, J. C. J. Am. Chem. Soc. 2002, 124, 6335-6342 and ref 4).
23. See Supporting Information.
24. Interestingly, these complexes do not homopolymerize propylene oxide (24 h, 25 °C).
25. Chisholm, M. H.; Navarro-Llobet, D.: Zhou, Z. Macromolecules 2002, 35, 6494-6504.