CH2CHCln

CH2CHCln is a chemical formula that represents a polymer. Specifically, it refers to polyvinylidene chloride, commonly known as PVDC. This polymer is a synthetic thermoplastic polymer that is characterized by its excellent barrier properties against gases and moisture. It is formed by the polymerization of vinylidene chloride monomers. The presence of chlorine atoms directly attached to the carbon backbone gives PVDC its unique characteristics. It is known for its low permeability to oxygen, water vapor, and aroma compounds.

PVDC is often used in applications where a high barrier is required. This includes food packaging, where it helps to extend the shelf life of products by preventing spoilage. It is also used in industrial coatings and films for its protective qualities. While PVDC itself is not typically found as a standalone product in consumer goods, it is a key component in many multi-layer packaging structures. Its ability to be processed into thin films or coatings makes it a versatile material in the polymer industry. The chemical structure provides rigidity and resistance to chemical attack.