lisandpolümeriseerimisega

Lisandpolümeriseerimine is a chemical process used to create polymers. It involves the sequential addition of monomer molecules to a growing polymer chain, typically initiated by a free radical or an ionic species. Unlike condensation polymerization, lisandpolümeriseerimine does not produce any small byproduct molecules such as water or methanol during the reaction. The monomers join together end-to-end, with the repeating unit in the polymer having the same atomic composition as the monomer. This type of polymerization is characterized by a chain reaction mechanism. The process begins with an initiation step, where the initiator forms an active center. This active center then reacts with a monomer molecule, forming a new active center. The chain then propagates as more monomer molecules add to the active center. Finally, the chain terminates, ceasing further growth. Common polymers formed through lisandpolümeriseerimine include polyethylene, polypropylene, and polyvinyl chloride (PVC). The properties of the resulting polymer can be controlled by factors such as temperature, pressure, and the choice of initiator and monomers. This method is widely used in the production of various plastics and synthetic materials.