Hydrogenation of C=C bonds in styrene-butadiene-styrene block copolymers in the presence of monocyclopentadienyl titanium(IV) catalytic systems

D. Jamanek; Z. Wieczorek; I. Leszczyńska; W. Skupiński

Published : 2011-04-30

Vol. 56 No. 4 (2011)

Hydrogenation of C=C bonds in styrene-butadiene-styrene block copolymers in the presence of monocyclopentadienyl titanium(IV) catalytic systems

D. Jamanek Z. Wieczorek I. Leszczyńska W. Skupiński

Abstract

Hydrogenation of C=C bonds in styrene-butadiene-styrene (SBS) block copolymers in the presence of CpTiCl2(OC6H4Y-p)/BuLi and CpTiCl2(OC6H4Y-p)/Et3Al catalytic systems (Cp = cyclopentadienyl, Bu = butyl, Et = ethyl, Y = NO2, Cl, H, CH3, OCH3) was investigated. The effect of the kind of metal alkyl, Li:Ti or Al:Ti molar ratio, copolymer composition, reaction temperature and hydrogen pressure on activity of catalytic system was investigated. The best degree of hydrogenation for SBS copolymers (80-90 %), was obtained for the systems containing p-chlorophenoxy ligand with the most electron-acceptor properties.

Keywords

kopolimer styren-butadien-styren ; cyklopentadienylowe kompleksy tytanu ; uwodornienie ; butylolit ; trietyloglin styrene-butadiene-styrene copolymer ; cyclopentadienyl titanium complexes ; hydrogenation ; buthyllithium ; triethylaluminum

Details

References

Statistics

Authors

Download files

PDF

Zasady cytowania

Jamanek, D., Wieczorek, Z., Leszczyńska, I., & Skupiński, W. (2011). Hydrogenation of C=C bonds in styrene-butadiene-styrene block copolymers in the presence of monocyclopentadienyl titanium(IV) catalytic systems. Polimery, 56(4), 289–293. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/918

References

„KRATON® Polymers European Grade Range”, Materials of producer, KRATON® Polymers 2004, p. 7.

2. „An Introduction to KRATON™ Polymers”, Materials of producer, KRATON™ Polymers 2001, p. 8.

3. Bening C, Korcz W. H., Handlin Jr D. L.: „Styrenic Block Co-polymer Elastomers” in „Modern Styrenic Polymers" (Eds. Scheirs J, Priddy D.), John Wiley & Sons, Chichester 2003.

4. Vargas M. A., Chavez A. E., Herrera R., Manero O.: Rubber Chem. Technol. 2005, 78, 620.

5. Pat. US 4 501 857 (1985).

6. Pat. EP 0 339 986 Al (1989).

7. Pat. US 7 186 782 (2007).

8. Pat. US 7 186 783 (2007).

9. Pat. EP 0 532 099 (1993).

10. Tsang R. Ch.-Ch., Yang W.-S., Tsai M.-D.: Polymer 1999, 40, 6351.

11. Barriors V. A. E., Najera R. H., Petit A., Pla R: Eur. Polym. J. 2000, 36, 1817.

12. MacLeod S., Rosso R. J.: Adv. Synth. Catal. 2003, 345, 568.

13. Wu L., Jiang J., Wang Y, Jin Z.: J. Mol. Catal. A: Chem. 2004, 221, 47.

14. Skupiński W, Wasilewski A.: J. Organometal. Chem. 1981, 220, 39.

15. Skupiński W., Wasilewski A.: J. Organometal. Chem. 1985, 282, 69.

16. Haslam J., Willis H. A., Squirrell D. C. M.: „Identification and analysis of plastics”, Iiiffe Books, London 1972, p. 443.

17. James B. R.: „Homogeneous Hydrogenation”, Jon Wiley& Sons, London 1973.

18. Bercaw J., Brintzinger H. H.: J. Am. Chem. Soc. 1969, 91, 7301.

19. Brintzinger H. H., Bercaw J.: J.Am. Chem. Soc. 1970, 92, 6182.

20. Skupiński W., Niciński K., Maksimowski P., Wasek M.: J. Mol. Catal. A: Chem. 2002, 178, 73.

21. Kishore K., Perma S., Iyanar K., Pandureng L. P.: Fuel 1994, 73, 1583.

Google Scholar

Citing articles via

Statistics

Total abstract views : 0

PDF Downloads : 0

D. Jamanek polimery@ichp.pl

Z. Wieczorek

I. Leszczyńska

W. Skupiński