This post is Chemistry Notes: Differences between Addition & Condensation Polymerisation.
Learn the difference of Condensation and Addition Polymerisation!

Condensation Polymerisation
Product: Condensation polymerisation forms the polymer molecule and one water molecule per linkage.
Addition Polymerisation
Product: Addition polymerisation forms the polymer molecule only.

Condensation Polymerisation
Monomers: Uses two different types of monomers with different groups (e.g. diol and dicarboxylic acid).
Addition Polymerisation
Monomers: Uses monomers with double bonds (C=C).

Condensation Polymerisation
Mass of Polymer: The polymer weighs less than the total weight of the monomers because small molecules are lost.
Addition Polymerisation
Mass of Polymer: The polymer weighs the same as the total weight of the monomers.

Condensation Polymerisation
Reaction Conditions: Happens at room temperature and pressure.
Addition Polymerisation
Reaction Conditions: Needs high temperature and pressure.

Condensation Polymerisation
Naming of Polymers: The functional groups at the ends of one monomer react with the functional group on the end of the other monomer, in so doing creating long chains of alternating monomers, forming the polymer (polyamide or polyester).
Addition Polymerisation
Naming of Polymers: The name of the polymer is deduced by putting the name of the monomer in brackets and adding poly- as the prefix.
For example if propene is the alkene monomer used, then the name is poly (propene).

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