CAS No.: 78687-39-5
Product introduction:NR-BR refers to brominated natural rubber, a chemically modified derivative of natural rubber (NR) obtained through bromination reactions. The introduction of bromine atoms onto the natural rubber backbone enhances its reactivity, polarity, and compatibility with polar fillers such as silica. NR-BR has gained attention as a functional elastomer with potential applications as a coupling agent in rubber compounding
CAS No.:78687-39-5
NR-BR is a modified natural rubber typically appearing as a light yellow to brownish elastic solid. It is prepared by reacting natural rubber with a brominating agent such as N-bromosuccinimide (NBS), which selectively introduces bromine atoms at the allylic positions of the rubber backbone. The bromine content and molecular structure can be controlled by reaction conditions
Core Functions:
Coupling agent to enhance silica-rubber interactions in reinforced vulcanizates
Reactive intermediate for graft copolymerization via ATRP
Functional elastomer for improving cure reactivity and mechanical properties
Research use in polymer modification and rubber compounding studies
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