It was first synthesized by Arnold Collins, building on the work of Father Julius Nieuwland.  
It was first synthesized by Arnold Collins, building on the work of Father Julius Nieuwland.  Production using a free radical process produces a mostly trans polymer, but the use of sulfur or a butadiene can alter its polymer properties.  Vulcanized with metallic oxides, its oil and chemical resistance led to its wide use in automotive gaskets and laboratory tubing.  Today, because it can be made into a foam of thin sheets, it is used in wetsuits and other scuba gear.  FTP, name this "new" type of rubber polymerized from chloroprene at Dupont under Wallace Carothers.
It was first synthesized by Arnold Collins, building on the work of Father Julius Nieuwland.  
Neoprene (accept early polychloroprene)