| abstract |
Embodiments of the present disclosure relate to methods for adjusting polymer flow index. By way of example, a method for adjusting the polymer flow index comprises providing a monomer to the polymerization reactor, providing a chromium catalyst to the polymerization reactor, and providing an active amount of flow index modifier to the polymerization reactor. And the flow index modifier is selected from carbon dioxide, carbon monoxide, 2,4-hexadiene, and combinations thereof. [Selected figure] Figure 1 |