prov:value
| - propylene, isobutene, styrene, vinyl chloride, 1,1-dichloroethene, vinyl ethers of the formula CH2 ???CR--OR' in which R is hydrogen or a methyl group and R' is an alkyl group with from 1 to 18 carbon atoms, a cycloalkyl group or a polyether, acrylonitrile, methacrylonitrile, vinyl ketones of the formula CH2 ??? CR--CO--CH2 --R' in which R is hydrogen or a methyl group and R' is hydrogen or a C1 -
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