Ethene/4-Methyl-1-pentene copolymers by metallocene-based catalysts: Exhaustive microstructural characterization by 13C NMR spectroscopy

Macromolecules

Volumn 42, Issue 18, 2009, Pages 6964-6971

  Losio, Simona ^a   Boccia, Antonella Caterina ^a   Boggioni, Laura ^a   Sacchi, Maria Carmela ^a   Ferro, Dino Romano ^a  

^a CNR   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

1-PENTENE; CHEMICAL COMPOSITIONS; CO-MONOMER; COPOLYMER MICROSTRUCTURES; COPOLYMERIZATION PARAMETERS; HETERONUCLEAR; MAIN CHAINS; METALLOCENES; METHYLENE CARBONS; MICRO-STRUCTURAL CHARACTERIZATION; MOLAR CONTENT; NMR ASSIGNMENT; NMR SPECTROSCOPY; NMR SPECTRUM; NMR TECHNIQUES;

COMPLEXATION; COPOLYMERS; NUCLEAR MAGNETIC RESONANCE; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; ORGANOMETALLICS;

COPOLYMERIZATION;

EID: 70349923625     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma901226g     Document Type: Article

References (19)

1. Tincul, I.; Smith, J.; van Zyl, P. Macromol. Symp. 2003, 193, 13-28.
2. Randall, J. C. J. Macromol. Sci., Rev. Macromol. Chem. Phys. 1989, C29 (2&3), 201-317.
3. Kimura, K.; Yuasa, S.; Maru, Y. Polymer 1984, 25, 441-446.
4. Losio, S.; Tritto, I.; Zannoni, G.; Sacchi, M. C. Macromolecules 2006, 39, 8920-8927.
5. Resconi, L.; Balboni, D.; Baruzzi, G.; Fiori, C.; Guidotti, S. Organometallics 2000, 19, 420-429.
6. Galimberti, M.; Piemontesi, F.; Alagia, L.; Losio, S.; Sacchi, M. C.; Boragno, L.; Stagnaro, P. Rubber Chem. Technol., submitted.
7. (a) Bax, A.; Griffey, R. H.; Hawkins, B. L. J. Magn. Reson. 1983, 55, 301-315.
8. (b) Bax, A.; Subramaniam, S. J. Magn. Reson. 1986, 67, 565-569.
9. Bax, A.; Summers, M. F. J. Am. Chem. Soc. 1986, 108, 2093-2094.
10. Carman, C. J.; Wilkes, C. E. Rubber Chem. Technol. 1971, 44, 781-804.
11. Losio, S.; Boccia, A. C.; Sacchi, M. C. Macromol. Chem. Phys. 2008, 209, 1115-1128.
12. Losio, S.; Stagnaro, P.; Motta, T.; Sacchi, M. C.; Piemontesi, F.; Galimberti, M. Macromolecules 2008, 41, 1104-1111.
13. (a) Qiu, X. H.; Redwine, D.; Gobbi, G.; Nuamthanom, N.; Rinaldi, P. L. Macromolecules 2007, 40, 6879-6884.
14. (b) Liu, W.; Rinaldi, P. L.; McIntosh, L. H.; Quirk, R. P. Macromolecules 2001, 34, 4757-4767.
15. (c) Sahoo, S. K.; Zhang, T.; Reddy, D. V.; Rinaldi, P. L.; McIntosh, L. H.; Quirk, R. P. Macromolecules 2003, 36, 4017-4028.
16. In ref 10, two widely different assignments of the Sββ carbon of the PEP sequence were reported. The origin of a spectral difference of as much as 2.77 ppm between the two assignments was accounted for as depending on the difference of the neighbouring sequences of the central carbon in the two PPEPD and EPEPE pentads. In the copolymers obtained with TBI, which promotes the formation of "blocky" copolymers, the signal at 21.80 ppm, corresponding to Sββ carbon in the alternating pentad EPEPE, is nearly absent, and only a single peak at 24.57 ppm assigned to PPEPD is observed).
17. (a) Tritto, I.; Marestin, C.; Boggioni, L.; Zetta, L.; Provasoli, A.; Ferro, D. R. Macromolecules 2000, 33, 8931-8944.
18. (b) Tritto, I.; Boggioni, Ferro, D. R. Coord. Chem. Rev. 2006, 250, 212-241.
19. Tritto, I.; Boggioni, L.; Jansen, J. C.; Thorshaug, K.; Sacchi, M. C.; Ferro, D. R. Macromolecules 2002, 35, 616-623.