Polüisopreen

Polyisoprene is a polymer derived from isoprene monomers. It is a naturally occurring elastomer, most famously known as the primary component of natural rubber. The chemical structure of polyisoprene consists of repeating isoprene units, which are C5H8 molecules. Natural rubber is primarily *cis*-1,4-polyisoprene, a stereoisomer that gives it its characteristic elasticity. Synthetic polyisoprene can be produced with varying degrees of stereoregularity, mimicking natural rubber or offering different properties.

The process of polymerization involves linking many isoprene monomers together to form long chains. This process can be achieved through various polymerization techniques, including Ziegler-Natta catalysis, anionic polymerization, and free radical polymerization. The specific catalyst and reaction conditions influence the microstructure of the resulting polymer, such as the cis/trans ratio and the degree of branching.

Polyisoprene exhibits excellent tensile strength, elasticity, and resilience. These properties make it suitable for a wide range of applications. Natural rubber, a form of polyisoprene, is used extensively in tires, gloves, footwear, and many other elastic products. Synthetic polyisoprene can be engineered to possess specific characteristics, offering alternatives or enhancements to natural rubber in certain applications. Its resistance to abrasion and its ability to deform significantly without breaking are key attributes.