Polymer scrambling: Macromolecular radical crossover reaction between the main chains of alkoxyamine-based dynamic covalent polymers

Journal of the American Chemical Society

Volumn 125, Issue 14, 2003, Pages 4064-4065

  Otsuka, Hideyuki ^a   Aotani, Koichiro ^a   Higaki, Yuji ^a   Takahara, Atsushi ^a  

^a KYUSHU UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

2,2,6,6 TETRAMETHYLPIPERIDINE 1 OXYL; AMINE; COPOLYMER; POLYMER; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL STRUCTURE; DYNAMICS; HEATING; HYBRIDIZATION; POLYMERIZATION; REACTION ANALYSIS; STRUCTURE ANALYSIS; SYNTHESIS;

EID: 0037427282     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja0340477     Document Type: Article

References (13)

1. (a) Utracki, L. A. Polymer Alloys and Blends: Hanser: New York, 1989.
2. (b) Ryan, A. J. Nat. Mater. 2002, 1, 8 - 10 and references cited therein.
3. Otsuka, H.; Aotani, K.; Higaki, Y.; Takahara, A. Chem. Commun. 2002, 2838-2839.
4. There have been some examples of thermally reversible polymers, but most of them showed reversibility between polymers and monomers or linear polymers and cross-linked polymers; for example, see: Chen, X.; Dam, M. A.; Ono, K.; Mal, A.; Shen, H.; Nutt, S. R.; Sheran, K.; Wudl, F. Science 2002, 295, 1698-1702.
5. (a) Rowan, S. J.; Cantrill, S. J.; Cousin, G. R. L.; Sanders, J. K. M.; Stoddart, J. F. Angew. Chem., Int. Ed. 2002, 41, 898-952.
6. (b) Nishinaga, T.; Tanatani, A.; Oh, K.; Moore, J. S. J. Am. Chem. Soc. 2002, 124, 5934-5935.
7. The observation of the transesterification reaction has been reported in the polyester blend containing a liquid crystalline polymer over 250 °C; for examples, see: (a) Zhou, C.; Ma, J. L; Pan, L.; Liang, B. Eur. Polym. J. 2002, 38, 1049-1053.
8. The observation of the transesterification reaction has been reported in the polyester blend containing a liquid crystalline polymer over 250 °C; for examples, see: (b) Porter, R. S.; Wang, L. H. Polymer 1992, 33, 2019-2030.
9. (a) Hawker, C. J. J. Am. Chem. Soc., 1994, 116, 11185-11186.
10. (b) Hawker, C. J.; Bosman, A. W.; Harth. E. Chem. Rev. 2001, 101, 3661-3688.
11. Ohno, K.; Tsujii, Y.; Fukuda, T. Macromolecules 1997, 30, 2503-2506.
12. In the case of the radical polymerization of styrene with unimolecular alkoxyamine initiator, the exchange of the mediating nitroxide moieties at the terminal of growing polymer chains during polymerization was observed: Hawker, C. J.; Barclay, G. G.; Dao, J. J. Am. Chem. Soc. 1996, 118, 11467-11471.
13. An exchange reaction with an excess of other nitroxide derivatives at the terminal group of the polystyrene prepared by nitroxide-mediated radical polymerization has been reported: Turro, N. J.; Lem, G.; Zavarine. I. S. Macromolecules 2000, 33, 9782-9785.