This video lecture from Macromolecules (F.Sc. second year Chemistry) covers polyamide resins. These resins form upon condensation polymerization between poly amines and aliphatic di-carboxylic acids. Nylon-6,6 and similar structures are discussed in detail. 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.