| abstract |
Embodiments of the present disclosure relate to methods of regulating a polymer flow index. As an example, a method of controlling a polymer flow index 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, The flow index modifier is selected from carbon dioxide, carbon monoxide, 2,4-hexadiene, and combinations thereof. |