Physico- Chemical Structure of Polymer,
Polymers are difficult to classify because there are so many interacting relationship among the large number of polymeric materials now in existence. Four most methods of classifications are 1. Physico chemical structure 2. Mode reparation 3. Physical properties 4. Technical applications A. Physico Chemical structure Functionality: - The ultimate result of coupling monomers to produce polymers is wholly dependent on the functionality of monomer. Molecule is called Mono-, bi-,tri-, or polyfunctional depending on the number of reactive bonds or groups available for coupling at beginning or during course of polymeric reaction. 1. Unifunctional (U-), Exampl...