The WebWare Molecules for July are from the paper Modern Sport and Chemistry: What a Chemically Aware Sports Fanatic Should Know by Giffin, Boone, Cole, McKay and Kopitzke. One of them, the monomer of Kevlar, is shown below. The "free valences" at the terminal N and C atoms are the sites of polymerization (depicted as bromine in the Chime representation).
In addition to the static image, two fully
manipulable versions (Jmol, MDLChime)
of these molecules appear below. (The Jmol
versions may take a few extra seconds to
load, based on the speed of your Internet
connection.)
Monomer of Kevlar
Note: Terminal Br atoms are used to represent the polymerization sites.