Liitumispolümeer

Liitumispolümeer is a term used in Estonian to describe a polymer formed through an addition polymerization reaction. In this type of polymerization, monomers, which are small molecules, link together to form a long polymer chain without the loss of any atoms or molecules. The monomers typically contain double or triple bonds, which are broken to allow for the formation of new single bonds between the monomer units. This process continues, adding more and more monomer units to the growing chain, until a high molecular weight polymer is achieved.

Common examples of addition polymers include polyethylene, polypropylene, and polyvinyl chloride (PVC). Polyethylene is formed from the addition polymerization of ethylene monomers. Polypropylene is synthesized from propylene monomers, and PVC is produced from vinyl chloride monomers. The repeating unit in an addition polymer is identical to the structure of the original monomer, except that the double or triple bonds have been converted into single bonds that connect the monomer units. The reaction is often initiated by free radicals, cations, or anions. This method is widely used in the chemical industry to produce a vast array of plastics and other polymeric materials.