| http://www.w3.org/ns/prov#value | - The molecular weight of the polymers can be varied by changing the polymerization temperature or the type or the concentration of the catalyst components, or by using molecular weight regulators, such as hydrogen, as well-known in the state of the art; the molecular weight of the propylene-based polymers may be also easily controlled by copolymerizing small amounts of ethylene.
|
