✍ Scribed by Kathan, Wolfgang ;Wedam, Othmar A. ;Hummel, Klaus
No coin nor oath required. For personal study only.
1,4‐Polybutadiene was partially hydrobrominated in the presence of AlBr~3~. A Grignard‐Wurtz‐reaction with phenylmagnesium bromide resulted in an exchange of the bromine atoms for phenyl groups. The polymers were degraded in an olefin metathesis reaction with 4‐octene using a WCl~6~/Sn(CH~3~)~4~ catalyst. The low molecular degradation products with bromine or phenyl substituents, resp., were separated by gas chromatography and identified by mass spectrometry.
📜 SIMILAR VOLUMES
## Abstract 1,4‐Polybutadien wurde mit Alkylbenzolen (Toluol, Äthylbenzol, __o‐, m__‐ und __p__‐Xylol, Mesitylen) und Dicumylperoxid in einer radikalischen Reaktion partiell aralkyliert. Die erhaltenen Polymeren wurden IR‐spektroskopisch untersucht und durch Metathese mit 4‐Octen unter Verwendung e
## Abstract 1,4‐Polybutadiene was partially aralkylated with halogenated alkylbenzenes (4‐fluorotoluene, 2‐, 3‐, and 4‐chlorotoluene, 4‐bromotoluene, 2‐chloro‐__p__‐xylene, 2,4‐dichlorotoluene, 3,4‐dichlorotoluene) and dicumyl peroxide. The modified polymers were investigated by IR‐spectroscopy and