Addition polymerization reactions (Physical Properties)

Addition polymerization reactions   (Physical Properties)

The polymerization is a chemical process by which the reactive monomers (molecular weight compounds) are grouped together chemically, resulting in a large weight molecule named polymer, or a straight chain or a three-dimensional macromolecule.

You can sort the polymerization reactions according to two criteria:

 ADDITION - CONDENSATION

Is by addition polymerization if the monomer molecule becomes part of the polymer without loss of atoms.
A polymer is water soluble when it has a sufficient number of hydrophilic groups along the main chain or side chain. These groups include primarily amines, amides, carboxyl groups and sulfonic groups. Within a water-soluble polymers are very important group polyelectrolytes.
These are polymers whose monomers can lose ions of low molecular weight and become electrically charged. Deriving these ions are called counterions.

A typical example of an addition polymerization of free radical polymerization is vinyl chloride, H: C=CHCl, polyvinyl chloride (PVC).

At lower temperatures the polymers become harder and with certain characteristics vitreous loss due to relative movement between the chains which form the material

At high temperatures, the polymers become highly viscous liquids in which the chains are constantly in motion changing its shape and sliding over each other.