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- W1938367041 abstract "1,4-Polybutadiene was partially brominated at the methylene groups with N-bromosuccinimide. Then, by means of Grignard-Wurtz reactions, the following substituents were introduced: isopropyl, butyl, pentyl, cyclohexyl, phenyl, 4-methylphenyl, 4-ethylphenyl, 3,4-dimethylphenyl, 4-isopropylphenyl, 4-fluorophenyl, 3-trifluorophenylmethyl, 4-chlorophenyl, benzyl, 2-methylbenzyl, and 4-methylbenzyl. The modified polymers (ca. 20% of the units substituted) were degraded to low molecular products with E-4-octene in the presence of the catalyst WCl6/(CH3)4Sn. The degradation products were separated by gas chromatography and identified by mass spectrometry. Isomeric substituents, isomeric units, and isomeric segments in the polymers could be distinguished. — In Grignard-Wurtz reactions, transfer reactions with toluene as solvent and simultaneous reactions with two Grignard reagents (4-methylphenyl and 4-methylbenzyl compounds) were also investigated." @default.
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- W1938367041 date "1983-08-01" @default.
- W1938367041 modified "2023-09-27" @default.
- W1938367041 doi "https://doi.org/10.1002/macp.1983.021840803" @default.
- W1938367041 hasPublicationYear "1983" @default.
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