| http://www.w3.org/ns/prov#value | - Suitable olefins here, besides ethylene and ??-olefins having 3 to 12 carbon atoms, for example propene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene and 1-dodecene, are also internal olefins and non-conjugated and conjugated dienes, such as butadiene, 1,5-hexadiene and 1,6-heptadiene, cyclic olefins, such as cyclohexene, cyclopentene and norbornene, and polar monomers, s
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