Metalloorganic Polymerization Catalysis as a Tool To Probe Crystallization Properties of Polymers: The Case of Isotactic Poly(1‐butene)

Age shall not weary them: Stereodefective isotactic polybutene samples, synthesized with single-center metallocene catalysts, crystallize from the melt into the stable form I (see picture) and do not undergo phase transformation upon aging at room temperature. Hence, the corresponding physical and mechanical properties of molded objects are not altered by aging.