Used primarily as a comonomer in the production of polyethylene, especially linear low-density polyethylene (LLDPE), 1-decene helps improve the strength, flexibility, and durability of plastic films. It is also utilized in the synthesis of synthetic lubricants, where it contributes to enhanced thermal stability and performance under extreme conditions. Additionally, 1-decene serves as an intermediate in the manufacture of surfactants, detergents, and oil additives through processes like alkylation and oligomerization. Its reactivity makes it valuable in producing amines, alcohols, and other specialty chemicals used in industrial and consumer products.