The document discusses the classification and properties of different types of polymers. Polymers are classified based on their mode of polymerization into addition polymers and condensation polymers. They are also classified based on molecular forces into elastomers, fibers, thermoplastic polymers, thermosetting polymers, and natural rubber. Examples of various polymers are provided along with their common uses such as nylon 6 for tire cords and fabrics and nylon 6,6 for textiles. Teflon is noted for its chemical inertness and use in non-stick coatings.