This video lecture from Macromolecules (F.Sc. second year Chemistry) covers condensation polymerization. In this type of polymerization, multiple monomers condense to form bigger molecules by elimination of parts of the individual monomers reacting together. Polyester is an example of this type. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.