Hyperbranched poly(∈-caprolactone) derived from intrinsically branched AB2 macromonomers

Macromolecules

Volumn 31, Issue 13, 1998, Pages 4390-4395

  Trollsås, Mikael ^a   Hedrick, James L ^a  

^a IBM ALMADEN RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

MACROMOLECULES; MOLECULAR STRUCTURE; MONOMERS; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; POLYMERIZATION; SIZE EXCLUSION CHROMATOGRAPHY; SYNTHESIS (CHEMICAL);

MACROMONOMERS; POLYCAPROLACTONE;

POLYESTERS;

EID: 0032095952     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma980151a     Document Type: Article

References (31)

1. (a) Fréchet, J. M. J. Science 1994, 263, 1710.
2. (b) Webster, O. W. Science 1991, 251, 887.
3. (c) Hawker, C. J.; Fréchet, J. M. J. In Comprehensive Polymer Science, Supplement 2; Aggarwal, S. L., Russo, S., Eds.; Pergamon: Oxford, England, 1996; Chapter 3, p 71.
4. (e) Newkome, G. R. Advances in Dendritic Macromolecules; JAI: Greenwich, CT, 1993; Vol. 1, p 1.
5. (a) Kim, Y. H.; Webster, O. W. Polym. Prepr. 1988, 29, 310.
6. (b) Hawker, C. J.; Lee, R.; Fréchet, J. M. J. J. Am. Chem. Soc. 1991, 113, 4583.
7. (c) Percec, V.; Kawasumi, M. Macromolecules 1992, 25, 3843.
8. (d) Suzuki, M.; Ii, A.; Saegusa, T. Macromolecules, 1992, 25, 7071.
9. (e) Turner, S. R.; Voit, B. I.; Mourey, T. H. Macromolecules 1993, 26, 4617.
10. (f) Johansson, M.; Malmström, E.; Huit, A. J. Polym. Sci.: Part A, Chem. Ed. 1993, 31, 619.
11. (g) Kricheldorf, H. R.; Lohden, G. Macromol. Chem. Phys. 1995, 196, 1839.
12. (h) Fréchet, J. M. J.; Henmi, M.; Gitsov, I.; Aoshima, S.; Leduc, M.; Grubbs, R. B. Science 1995, 269, 1080.
13. (i) Hawker, C. J.; Fréchet, J. M. J.; Grubbs, R. B.; Dao, J. J. Am. Chem. Soc. 1995, 117, 10763.
14. (j) Gaynor, S. G.; Edelman, S. Z.; Matyjaszewski, K. Macromolecules 1996, 29, 1079.
15. Tomalia, D. A.; Hedstrand, D. M.; Ferritto, M. S. Macromolecules 1991, 24, 1435.
16. Gauthier, M.; Möller, M. Macromolecules 1991, 24, 4548.
17. Grubbs, R. G.; Hawker, C. J.; Dao, J.; Fréchet, J. M. J. Angew. Chem., Int. Ed. Engl. 1997, 36, 270.
18. Hawker, C. J.; Chu, F.; Pomery, P. J.; Hill, D. J. T. Macromolecules 1996, 29, 3831.
19. (a) Trollsås, M.; Atthoff, B.; Claesson, H.; Hedrick, J. L.; Macromolecules 1998, 31, 3439.
20. (b) Trollsås, M.; Hedrick, J. L.; Mecerreyes, D.; Dubois, Ph.; Jérôme, R. Polym. Mater. Sci. Eng. 1997, 77, 208.
21. Voit, B. I. presented at the 35th IUPAC International Symposium on Macromolecules, Akron, OH. 1994.
22. Trollsås, M.; Hedrick, J. L.; Mecerreyes, D.; Dubois, Ph.; Jérôme, R.; Ihre, H.; Huit, A. Macromolecules 1997, 30, 8508.
23. Malmström, E.; Trollsås, M.; Hawker, C. J.; Johansson, M.; Hult, A. Polym. Mater. Sci. Eng. 1997, 77, 151.
24. 17
25. 6) were used with THF as solvent.
26. 2 (g) atmosphere. The reaction was stopped after 24 h, the Pd/C was filtered off and the clear solution was precipitated into cold methanol. The obtained macromonomer was a white crystalline powder. Yield: 3.00 g.
27. 2 and then DCC (0.10 g, 0.50 mmol) were added. After 48 h the reaction mixture was precipitated into methanol and then filtered to yield 0.87 g (87%) of hyperbranched polymer poly(4-n).
28. (a) Flory, P. J. J. Am. Chem. Soc. 1952, 75, 2718.
29. (b) Stockmayer, W. H. J. L. J. Chem. Phys. 1943, 11, 45.
30. Trollsås, M.; Hedrick, J. L. J. Am. Chem. Soc. 1998, 120, 4644.
31. Trollsås, M.; Hedrick, J. L.; Mecerreyes, D.; Dubois, Ph.; Jérôme, R.; Ihre, H.; Huit, A. Macromolecules 1998, 31, 2756.