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Homogeneous catalytic hydrogenation of natural rubber using RhCl(PPh3)3

โœ Scribed by Nikhil K. Singha; P. P. De; S. Sivaram

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
183 KB
Volume
66
Category
Article
ISSN
0021-8995

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โœฆ Synopsis

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 ethylenepropylene 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.

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