Polymerization
(Short Note)
Definition
The phenomenon in which simple and small molecules are converted into
large and complex molecules is known as Polymerization.
The simple and small molecules are
known as monomer, where as large and complex molecules are called polymers.
Classification of Polymerization
Polymerization has been classified
the following.
1. Addition Polymerization
2. Condensation Polymerization
1. Addition Polymerization
The process of Polymerization in
which molecules are added into each other is called Addition Polymerization.
Examples
In presence of traces of oxygen when
is heated at about 200ºC under 100 atm pressure, then Polymerization takes
place. As a result, monomers add together to form polymer i.e. Polyethene or
Polythene.
Diagram Coming Soon
Similarly the Polymerization of Vinyl
Chloride to Poly Vinyl Chloride (PVC) and Polymerization of Vinyl Acetate to
Poly Vinyl Acetate (PVA) are the examples of Addition Polymerization.
2. Condensation Polymerization
The process of Polymerization in
which removal of water molecule takes place with the formation of polymer is
called Condensation Polymerization.
Example
Bakelite Plastic is the Polymer that
is obtained by the polymerization of Phenol and formaldehyde. During this
process removal of water molecule takes place.
Diagram Coming Soon
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