Lisäyspolymeeroituneet

Lisäyspolymeeroituneet is a Finnish term that translates to "addition polymers" in English. Addition polymerization is a type of polymerization reaction where unsaturated monomer molecules add to one another in such a way that the polymer contains all the atoms of the monomer. This process typically involves monomers with double or triple bonds. During the reaction, the double or triple bonds in the monomer break, and the monomers link together to form long polymer chains. No byproducts are formed during this process; the polymer is simply the sum of the monomers.

Common examples of addition polymers include polyethylene, polypropylene, polyvinyl chloride (PVC), and polystyrene. These materials are widely used in everyday life, from plastic bags and containers to pipes, insulation, and packaging. The properties of addition polymers can be varied by choosing different monomers or by controlling the polymerization conditions, such as temperature, pressure, and the presence of catalysts. The repeating unit in the polymer chain is identical to the monomer molecule, which is a key characteristic of addition polymerization. This contrasts with condensation polymerization, where small molecules like water or methanol are eliminated as byproducts.