The degradation of unsaturated polymers by olefin metathesis has already been applied to the investigation of crosslink structures. In the present paper, crosslinks in poly(butadiene‐alt‐propene), obtained by partial bromination with N‐bromosuccinimide and reaction with 1,4‐bis(bromomagnesium)butane, were investigated by this method. Metathesis degradation was carried out with (E)‐4‐octene using the catalyst WCl6‐Sn(CH3)4. The low‐molecular‐weight products were identified by combination of gas chromatography (GC) and mass spectrometry (MS).
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Hummel et al. (1990) studied this question.
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