Abstract
A dendritic multifunctional initiator with 6 TEMPO-based alkoxyamine moieties was prepared from 4-bromophenylethylbenzene in 7 steps and 6-arm star polymers were prepared by the radical polymerization of styrene (St) using the dendritic alkoxyamine as an initiator. The St polymerizations were carried out at 120 °C using the dendritic alkoxyamine concentrations of 5.0, 12.8, and 18.8 mmol L-1. When the alkoxyamine concentration was 5.0 mmol L-1, the polydispersity indexes of the resulting star polymers increased with conversion and that of the star polymer at 72% conversion was 1.59. On the other hand, when the alkoxyamine concentrations were 12.8 and 18.8 mmol L-1, the polymerization was well controlled to give star polymers with a low polydispersity index even at high conversion. The side reactions disturbing the “living” fashion were discussed on the basis of the SEC elution curves of the star polymers obtained.
Similar content being viewed by others
Article PDF
References
D. H. Solomon, E. Rizzardo, and P. Cacioli, U. S. Patent 4 581 429 (Apr. 8, 1986).
Chem. Abstr., 102, 221335q (1985).
M. K. Georges, R. P. N. Veregin, P. M. Kazmaier, and G. K. Hamer, Macromolecules, 26, 2987 (1993).
“Controlled/Living Radical Polymerization”, K. Matyjaszewski, Ed., ACS Symposium Series No. 768, American Chemical Society, Washington D.C, 2000.
C. J. Hawker, Acc. Chem. Res., 30, 373 (1997).
E. E. Malmström and C. J. Hawker, Macromol. Chem. Phys., 199, 923 (1998).
C. J. Hawker, A. W. Bosman, and E. Harth, Chem. Rev., 101, 3661 (2001).
Y. Miura and Y. Yoshida, Macromol. Chem. Phys., 203, 879 (2002).
J. Qiu and K. Matyjaszewski, Acta Polym., 48, 169 (1997).
T. E. Patten and K. Matyjaszewski, Acc. Chem. Res., 32, 895 (1999).
M. Sawamoto and M. Kamigaito, Trends Polym. Sci., 4, 371 (1996).
M. Kamigaito, T. Ando, and M. Sawamoto, Chem. Rev., 101, 3689 (2001).
J. Chiefari, Y. K. Chong, F. Ercole, J. Krstina, J. Jeffery, T. P. T. Le, R. T. A. Mayadunne, G. F. Meijs, C. L. Moad, G. Moad, E. Rizzardo, and S. H. Thang, Macromolecules, 31, 5559 (1998).
S. Abrol, P. A. Kambouris, M. G. Looney, and D. H. Solomon, Macromol. Rapid Commun., 18, 755 (1997).
N. Ide and T. Fukuda, Macromolecules, 32, 95 (1999).
A. J. Pasquale and T. E. Long, J. Polym. Sci., Part A: Polym. Chem., 39, 216 (2001).
T. Tsoukatos, S. Pispas, and N. Hadjichristidis, J. Polym. Sci., Part A: Polym. Chem., 39, 320 (2001).
A. Narumi, T. Satoh, H. Kaga, and T. Kakuchi, Macromolecules, 35, 699 (2002).
C. J. Hawker, Angew. Chem. Int. Ed. Eng., 34, 1456 (1995).
S. Robin, O. Guerret, J.-L. Couturier, and Y. Gnanou, Macromolecules, 35, 2481 (2002).
G. Chessa, A. Scrivanti, U. Matteoli, and V. Castelvetro, Polymer, 42, 9347 (2001).
P. D. Bartlett, E. P. Benzing, and R. E. Pincock, J. Am. Chem. Soc., 82, 1762 (1960).
Y. Miura, K. Hirota, H. Moto, and B. Yamada, Macromolecules, 31, 4659 (1998).
Y. Miura, K. Hirota, H. Moto, and B. Yamada, Macromolecules, 32, 8356 (1999).
S. Angot, K. S. Murthy, D. Taton, and Y. Gnanou, Macromolecules, 31, 7218 (1998).
S. Angot, K. S. Murthy, D. Taton, and Y. Gnanou, Macromolecules, 33, 7261 (2000).
Y. Miura, S. Mibae, H. Moto, N. Nakamura, and B. Yamada, Polym. Bull., 42, 17 (1999).
E. Drockenmuller and J.-M. Catala, Macromolecules, 35, 2461 (2002).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Miura, Y., Yoshida, Y. Synthesis of Six-Arm Star Polymer by Nitroxide-Mediated “Living” Radical Polymerization. Polym J 34, 748–754 (2002). https://doi.org/10.1295/polymj.34.748
Issue Date:
DOI: https://doi.org/10.1295/polymj.34.748