Studies on a New Antireversion Agent for Sulfur Vulcanization of Diene Rubbers
Diene
DOI:
10.5254/1.3538397
Publication Date:
2011-02-16T23:21:06Z
AUTHORS (8)
ABSTRACT
Abstract The mechanism of biscitraconimides (BCI) as antireversion agents for sulfur vulcanized diene rubber was investigated choosing squalene a model substrate. Curing with in the presence accelerator, activator and BCI at 170°C gave bridged adducts. products were identified by spectroscopic methods being results Diels-Alder reaction (dienophile) conjugated polyenes that are formed result reversion. rate which network degrades is comparable to adduct formed. As this, nearly constant crosslink density obtained after optimum cure time (t90). Based on this concept, advantage using 1,3-bis-(citraconimidomethyl) benzene (BCI-MX), representative BCI-class, NR based compounds examined.
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