Polyamide

macromolecule with repeating units linked by amide bonds

A polyamide is a polymer made of amides which are joined by peptide bonds. Examples for polyamides that occur naturally are proteins, such as wool and silk. It is also possible to artificially produce polyamides, one growth-step at a time. Examples for artificially-made polyamides are nylons, aramids and Sodium poly(aspartate).