The monomers of nylon 6,6 are hexamethylenediamine and adipic acid. The majority of nylons tend to be semi-crystalline and are generally very tough materials with good thermal and chemical resistance. The most common form of nylon is Nylon-66. Types of Nylon. Both of these monomers are organic compounds that are held together by an amide bond. Nylons can be used in high temperature environments. Nylon 6 – It was developed by Paul Schlack. Uses of Nylon The monomers of nylon 6,6 are hexamethylenediamine and adipic acid. The different types give a wide range of properties with specific gravity, melting point and moisture content tending to reduce as the nylon number increases. Nylon-66 has the formula (-NH-CO-(CH2)4-CO-NH-(CH2)6-)n , where n is a natural number, meaning nylon is a chain. What is the chemical formula of nylon? Nylon 1,6 – It is produced from dinitriles with the help of acid catalysis. The chemical formula of nylon 6,6 is C 12 H 22 O 2 N 2. Nylon 66 – Wallace Carothers patented nylon 66 with the use of amide. It is formed by ring-opening polymerization. Nylon 510 – It is obtained from sebacic and pentamethylene diamine acid.