It is chemically inert and resistant to attack by corrosive reagent. It is used in making oil seals, gaskets and also for non-stick surface coated utensils.
6. Polyacrylonitrile
It is used as a substitute for wool in making commercial fibres as orIon or acrilan.
Polyamides
The polymers which contain an amide linkage in chain are known as pOlyamide, e. g., nylon-6, 6.
1. Nylon-66
It is obtained by the condensation of adipic acid and hexamethylenediamine with the elimination of water molecule
The polyamides are identified by numbers. These numbers refer to the number of carbon atoms in diamine and in the dibasic acid. As in the above case, the carbon atoms are 6 in each case, therefore the product is described as _ nylon-66.