- Diethers usable in the preparation of Ziegler-Natta catalysts and their preparation
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Diethers of general formula: where R, RI, RII, RIII, RIVand RV, same or different, are H or linear or branched alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl radicals with 1-18 carbon atoms, provided that R and RIare not both H or CH3 or are not CH3 and n-propyl; RVIand RVIIthe same or different, are linear or branched alkyl, cycloaliphatic, aryl, or arylalkyl radicals having 1-18 carbon atoms; one or more of R to RVIImay be bonded to form a cyclic structure. The diethers are particularly useful in the preparation of Ziegler-Natta catalysts.
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