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Rhodium complexes as catalysts for hydrosilylation crosslinking of silicone rubber
Author(s) -
Heidingsfeldová Marta,
Čapka Martin
Publication year - 1985
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/app.1985.070300505
Subject(s) - hydrosilylation , vulcanization , catalysis , polymer chemistry , rhodium , solvent , natural rubber , chemistry , silicone rubber , norbornadiene , materials science , organic chemistry
Vulcanization of silicon rubber compound based on polysiloxanes containing vinyl and Si–H groups catalyzed by [RhCl(CO) 2 ] 2 , [RhCl(C 2 H 4 ) 2 ] 2 , [RhCl(1,5‐COD)] 2 , [RhCl(NBD)] 2 , RhCl[P(C 6 H 5 ) 3 ] 3 , and Rh(acac) 3 (1,5‐COD = 1,5‐cyklooktadiene, NBD = norbornadiene, acac = acetylacetonate) has been studied in dependence on the catalyst, solvent, and reaction conditions. The course of vulcanization as well as the crosslinking density of the vulcanizate and the content of sol indicate that the above catalysts are comparable to and in some cases even better than the widely used hexachloroplatinic acid.