Polybutene is an oligomeric oil used to make putty. Oligomerization is a chemical process that converts monomers to macromolecular complexes through a finite degree of polymerization. Telomerization is an oligomerization carried out under conditions that result in chain transfer, limiting the size of the oligomers. (This concept is not to be confused with the formation of a telomere, a region of highly repetitive DNA at the end of a chromosome.) Green oil In the oil and gas industry, green oil refers to oligomers formed in all C2, C3, and C4 hydrogenation reactors of ethylene plants and other petrochemical production facilities; it is a mixture of C4 to C20 unsaturated and reactive components with about 90% aliphatic dienes and 10% of alkanes plus alkenes. Different heterogeneous and homogeneous catalysts are operative in producing green oils via the oligomerization of alkenes. See also GPCR oligomer Oligomery (botany) Protein oligomer References External links Polymer chemistry