Triisobutylaluminum is widely used as a catalyst in the polymerization of olefins, such as ethylene and propylene, to produce plastics and synthetic rubber. It is also employed in the production of specialty chemicals and as a co-catalyst in Ziegler-Natta polymerization processes. Additionally, it serves as a reducing agent in organic synthesis, particularly in the preparation of organometallic compounds. In the electronics industry, it is utilized in the deposition of thin films during the manufacturing of semiconductors. Its role in these processes is crucial due to its high reactivity and efficiency in facilitating chemical reactions.