. The “Chemistry in Focus” segment Mother of Invention discusses Stephanie Kwolek and the invention of Keviar. Is Keviar a copolymer or a homopolymer?
Interpretation:
Kevlar is a polymer developed by the chemist Stephanie Kwolek. Polymers are categorized under wo main groups based on their monomers, photopolymer and copolymer.
Concept Introduction:
If the polymer is made up of one type of monomer (building units of the polymer), they are considered as homopolymers. If the polymer is built up involving more than one monomer they are considered as copolymers.
Kevlar is a polymer that is formed using benzene-1, 4-diamine and benzene-1, 4-dicarboxylic acid (terephthalic acid) (commercially instead of dicarboxylic acid, acid chloride, benzene-1, 4-dicarbonyl chloride is used) as the monomers. They ultimately form amide linkages; thus, Kevlar is also called a polyamide...
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