Polymers that contain only a single type of repeat unit are known as homopolymers, while polymers containing a mixture of repeat units are known as copolymers. Poly(styrene), for example, is composed only of styrene monomer residues, and is therefore classified as a homopolymer.
AirHeads bounced onto the radar of confection lovers in 1986 courtesy of the Italian and Dutch candy manufacturing company Perfetti Van Melle. Produced by their USA division based in Kentucky, AirHeads are a chewy taffy-like confection that kids love to pull, squish and mold into crazy shapes before they bite into it.
Lennox Residential HVAC Equipment. Like Trane, Carrier and a few other leading brands, Lennox makes the complete range of heating, air conditioning, ventilation and air quality products. Hereâs a look at the three series youâll find when you explore most types of Lennox HVAC equipment.