| abstract |
Embodiments of the present disclosure relate to methods for modifying the flow index of polymers. As an example, a method for modifying the flow index of a polymer may include providing a monomer to a polymerization reactor, providing a chromium catalyst to the polymerization reactor, and providing an active amount of a flow index modifier to the polymerization reactor, Wherein the flow index modifier is selected from carbon dioxide, carbon monoxide, 2,4-hexadiene and combinations thereof. |