Liitumispolümeere

Liitumispolümeere, also known as addition polymers, are a class of polymers formed by the repeated addition of monomers without the loss of any atoms. This process, known as addition polymerization, typically involves monomers that contain double or triple bonds, such as alkenes. During polymerization, the pi bonds in these monomers break, and the monomers link together to form a long, continuous polymer chain. A key characteristic of addition polymerization is that the empirical formula of the repeating unit in the polymer is the same as the empirical formula of the monomer.

Common examples of liitumispolümeere include polyethylene, polypropylene, and polyvinyl chloride (PVC). Polyethylene, formed from the polymerization of ethene, is widely used in packaging films, bags, and bottles. Polypropylene, derived from propene, finds applications in textiles, automotive parts, and containers. PVC, polymerized from vinyl chloride, is a versatile material used in pipes, window frames, and flooring. The properties of liitumispolümeere can be significantly influenced by factors such as the type of monomer used, the reaction conditions (temperature, pressure, catalysts), and the molecular weight of the resulting polymer. These polymers are generally stable and resistant to chemical attack, making them suitable for a wide range of industrial and consumer applications.