Polybutadienikumi

Polybutadienikumi is a term that appears to be a misspelling or a portmanteau, likely related to polymers, specifically polybutadiene. Polybutadiene is a synthetic rubber produced by the polymerization of butadiene. It is a homopolymer with the chemical formula (C4H6)n. Depending on the polymerization method used (e.g., Ziegler-Natta catalysis, anionic polymerization), polybutadiene can exist in different microstructures, including high-cis, low-cis, high-trans, and vinyl forms. These microstructures influence the material's properties, such as glass transition temperature, elasticity, and abrasion resistance.

Polybutadiene is widely used in the tire industry, often blended with other elastomers like natural rubber or styrene-butadiene rubber to improve wear resistance, resilience, and low-temperature performance. It is also found in impact modifiers for plastics such as acrylonitrile-butadiene-styrene (ABS) resins, and in the manufacture of golf ball cores and various industrial rubber goods. Its high resilience and low hysteresis make it a valuable component in applications where energy absorption and rebound are important. The "kumi" part of "polybutadienikumi" does not correspond to any standard chemical nomenclature or polymer type. It is possible it is a coined term or a mistaken entry.