| http://www.w3.org/ns/prov#value | - Suitable types of molecular weight regulators that can be utilized include, but are not limited to, ??-olefins such as ethylene, propylene, 1-but:ene, 1-pentene, 1-hexene, 1-heptene, and 1-octene; accumulated diolefins such as allene and 1,2-butadiene; nonconjugated diolefins such as 1,6-octadiene, 5-methyl-1,4-hexadiene, 1,5-cyclooctadiene, 3,7-dimethyl-1,6-octadiene, 1,4-cyclohexadiene, 4-vinylc
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