Catalytic hydrogenation of styrene-g-natural rubber (ST-g-NR) in the presence of OsHCl(CO)(O2)(PCy3)2

European Polymer Journal

Volumn 45, Issue 8, 2009, Pages 2358-2373

  Kongparakul, Suwadee ^a   Prasassarakich, Patttarapan ^a   Rempel, Garry L ^b  

^a CHULALONGKORN UNIVERSITY   (Thailand)

^b UNIVERSITY OF WATERLOO   (Canada)

Author keywords

Graft copolymer; Hydrogenation; Kinetics; Natural rubber; Osmium complex

Indexed keywords

APPARENT ACTIVATION ENERGY; BENEFICIAL EFFECTS; CATALYST CONCENTRATION; CATALYTIC HYDROGENATION; DOUBLE BONDS; FIRST-ORDER; FIRST-ORDER DEPENDENCE; FUNCTION OF TIME; HYDROGEN PRESSURES; HYDROGENATION RATE; NATURAL RUBBER; OSMIUM COMPLEX; REACTION TEMPERATURE; RUBBER CONCENTRATION; UNIVARIATE;

ACTIVATION ENERGY; CATALYSIS; CATALYSTS; COPOLYMERIZATION; GRAFT COPOLYMERS; GRAFTING (CHEMICAL); HYDROGEN; ORGANIC POLYMERS; OSMIUM; RUBBER; SETTLING TANKS; STYRENE;

HYDROGENATION;

EID: 67650376515     PISSN: 00143057     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.eurpolymj.2009.05.007     Document Type: Article

References (26)

1. ď Auzac J., Jacob J.L., and Chrestin H. Physiology of rubber tree latex: the laticiferous cell and latex-A model of cytoplasm (1989), CRC Press, Inc., Florida
2. Arayapranee W., Prasassarakich P., and Rempel G.L. Process variables and their effects on grafting reactions of styrene and methyl methacrylate onto natural rubber. J Appl Polym Sci 89 (2003) 63-74
3. Kochthongrasamee T., Prasassarakich P., and Kiatkamjornwong S. Effects of redox initiator on graft copolymerization of methyl methacrylate onto natural rubber. J Appl Polym Sci 101 (2006) 2587-2601
4. Luankeaw W. Synthesis of natural rubber grafted styrene as impact modifier for poly(vinyl chloride). Master thesis, Department of Chemical Technology, Faculty of Science, Chulalongkorn University; 2002.
5. Arayapranee W., and Rempel G.L. Factorial experimental design for grafting of vinyl monomers onto natural rubber latex. J Appl Polym Sci 93 (2004) 455-463
6. Pukkate N., Katai T., Yamamoto Y., Kawazura T., Sakdapipanich J., and Kawahara S. Nano-matrix structure formed by graft-copolymerization of styrene onto natural rubber. Eur Polym J 43 (2007) 3208-3214
7. Asaletha R., Kumaran M.G., and Thorma S. Thermal behaviour of natural rubber/polystyrene blends: thermogravimetric and differential scanning calorimetric analysis. Polym Degrad Stab 61 (1998) 431-439
8. Hinchiranan N., Suppaibulsuk B., Promprayoon S., and Prasassarakich P. Improving properties of modified acrylic sheet via addition of graft natural rubber. Mater Lett 61 (2007) 3951-3955
9. Peng Z., Li S.D., Huang M.F., Xu K., Wang C., Li P.W., and Chen X.G. Thermogravimetric analysis of methyl methacrylate-graft-natural rubber. J Appl Polym Sci 85 (2002) 2952-2955
10. Bhaduri S., and Mukesh D. Homogeneous catalysis mechanisms and industrial applications (2000), John Wiley & Sons, New York (p. 8)
11. 2. J Appl Polym Sci 89 (2003) 142-152
12. 2. J Appl Polym Sci 100 (2006) 640-655
13. 2: kinetics and mechanism. J Appl Polym Sci 100 (2006) 4499-4514
14. Esteruelas M.A., and Werner H. Five- and six-coordinate hydrido(carbonyl)-ruthenium (II) and -Osmium (II) complexes containing triisopropylphosphine as ligand. Organomet Chem 303 (1986) 221-231
15. 2) complex. Angew Chem Int Ed Engl 27 (1988) 1563-1564
16. US 4 858 637 (1989), invest.: Rempel GL, Mohammaddi NA.
17. Mohammaddi N.A., and Rempel G.L. Control, data acquisition and analysis of catalytic gas-liquid mini slurry reactors using a personal computer. Comput Chem Eng 11 (1987) 27-35
18. Guo X.Y., and Rempel G.L. Catalytic hydrogenation of nitrile-butadiene copolymer emulsion. J Appl Polym Sci 65 (1997) 667-675
19. 2. Appl Cat A Gen 344 (2008) 88-97
20. 3. J Am Chem Soc 111 (1989) 7431-7434
21. 2 catalyzed hydrogenation of nitrile-butadiene rubber. J Appl Polym Sci 79 (2001) 1618-1626
22. Kongparakul S., Prasassarakich P., and Rempel G.L. Effect of grafted methyl methacrylate on the catalytic hydrogenation of natural rubber. Euro Polym J 44 (2008) 1915-1920
23. 2; R = Cy, i-Pr). J Mol Cat A Chem 135 (1998) 285-293
24. Tanaka Y. Structure and biosynthesis mechanism of natural polyisoprene. Prog Polym Sci 14 (1989) 339-371
25. Flynn Joseph H., and Wall Leo A. A quick, direct method for the determination of activation energy from thermogravimetric data. Polym Lett 4 (1966) 323-328
26. Ozawa T. A new method of analyzing thermogravimetric data. Bull Chem Soc Jap 38 (1965) 1881-1886