prov:value
| - one to six, preferably one to three carbon atoms, R is a hydrogen atom or a methyl group, X is an oxygen atom or an imino group, A is a phenylene group or an alkylene group with one to four, preferably one or two carbon atoms, n is an integer from 1 to 4, preferably 1 or 2, and m is l, or may be 0 when X is an imino group, are used for polymerization, if desired in the presence of other olefinica
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