| http://www.w3.org/ns/prov#value | - The preliminary polymerization is preferably carried out in the presence of inert hydrocarbon solvents, and examples of the inert hydrocarbon solvents used in this case include aliphatic hydrocarbons such as propane, butane, n-pentane, i-pentane, n-hexane, i-hexane, n-pentane, n-octane, i-octane, n-decane, n-dodecane and kerosine; alicyclic hydrocarbons such as cyclopentane, methylcyclopentane, cy
|
