| 摘要 |
Vinylpyridines or vinylpyridines substituted in the nucleus by one or more alkyl radicals having up to 4 carbon atoms are polymerized using a catalyst whose cation portion is a metal of Group I, II or III and whose anion portion is an alkyl, aryl, hydride, alkylamide, arylamide, alkylhalide, arylhalide, halidealkylamide, halide-arylamide and mixed halide-alkylarylamide. Specified pyridines are 2, 3 and 4-vinylpyridine, methyl -2 or -4-vinylpyridines, 5-ethyl-2-vinylpyridine and ethyl-4-vinylpyridines. Specified catalysts include phenyl magnesium bromide, diethyl magnesium, butyl magnesium chloride, diethyl beryllium, magnesium-diethylamide bromide, aluminium tris-(dimethyl amide) and aluminium lithium hydride. Solvents such as anhydrous ether, n-heptane, benzene and toluene may be present.
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