4-phenyl-diamine (para-phenylenediamine) and terephthaloyl chloride to produce Kevlar. Obtained from editing [[Image:Kevlar_chemical_structure.png]] English
Description: Chemicalstructure of Kevlar. Author, date of creation: selfmade by cacycle, 30 March 2005. Source: - Copyright: GNU Free Documentation License
kevlar1.svg English: Chemicalstructure diagram of Aramid. Date 18 May 2016 Source Own work based on: CNX Chem 20 04 kevlar1.png by OpenStax Author Vectorization: