DETERMINATION OF CARBON-BLACK FILLER IN NATURAL-RUBBER VULCANIZATES BY OLEFIN METATHESIS DEGRADATION

Authors
KIATTANAVITH N HUMMEL K
Citation
N. Kiattanavith et K. Hummel, DETERMINATION OF CARBON-BLACK FILLER IN NATURAL-RUBBER VULCANIZATES BY OLEFIN METATHESIS DEGRADATION, Polymer degradation and stability, 41(1), 1993, pp. 1-3
Citations number
11
Categorie Soggetti
Polymer Sciences
Journal title
Polymer degradation and stability → ACNP
ISSN journal
01413910
Volume
41
Issue
1
Year of publication
1993
Pages
1 - 3
Database
ISI
SICI code
0141-3910(1993)41:1<1:DOCFIN>2.0.ZU;2-3
Abstract
1,4-Polyisoprene (natural rubber) containing carbon black fillers (typ es N 220, N 330, and N 550) was crosslinked with dicumyl peroxide or s ulphur together with the accelerator zinc-2-mercaptobenzothiazole (ZMB T). Quantitative determination of the carbon black filler was possible by metathesis degradation with 1-octene. It was found that the cataly st system WCl6/(C2H5)3Al2Cl3 is suitable for this purpose, presumably due to the formation of CH=CH groups in a side reaction. The metathesi s degradation was effective if the degree of crosslinking of the vulca nizates was not too high.