Premium
Homogeneous catalytic hydrogenation of natural rubber using RhCl(PPh 3 ) 3
Author(s) -
Singha Nikhil K.,
De P. P.,
Sivaram S.
Publication year - 1997
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19971128)66:9<1647::aid-app3>3.0.co;2-d
Subject(s) - natural rubber , elastomer , catalysis , homogeneous , monomer , polymer , copolymer , diene , materials science , polymer chemistry , epdm rubber , ethylene propylene rubber , solvent , ethylene , chemical engineering , chemistry , organic chemistry , composite material , thermodynamics , physics , engineering
Hydrogenation is an important method of chemical modification, which improves the physical, chemical, and thermal properties of diene elastomers. It is also a useful method for preparation of polymers with unusual monomer sequences. Natural rubber (NR) could be quantitatively hydrogenated to a strictly alternating ethylene‐propylene copolymer using a homogeneous RhCl(PPh 3 ) 3 catalyst. The effect of concentration of rubber, catalyst and triphenyl phosphine, temperature, pressure, and solvent on the course of hydrogenation were evaluated. The thermal properties of the hydrogenated NR are compared with NR. © 1997 John Wiley & Sons, Inc. J. Appl Polym Sci 66: 1647–1652, 1997