3. INTRODUCTIO
N Polymer is coined from to Greek word “poly” means many
“mer” means parts.
Defination: polymer is defined as very large molecules
having high molecular mass which are formed by joining
of repeating structural unit on large scale.
Monomer : repeating structural unit derived from some
simple and reactive moleculeles are linked to each other
by covalent bond.
Polymerization : process of polymer formation.
11. Should be inert and compatible with
environment
Should be non toxic
Should be easily administered
Should have good mechanical strength
Should be biodegradable
and biocompatible
Characteristics of ideal
polymer
12. Advantages of polymer
Localised delivery of drug
Sustained delivery of drug
Decrease in dosing frequency
Reduce side effect
Improve patient compliance
Biodegradable and biocompatible
Disadvantages of polymer
Exhibit dose dumping effect
High initial drug release after administration
Low mechanical properties
