Nomenclature
Duprene; GR-M; polychloroprene; poly(2-chloro-1,3-butadiene). Description and references
Mol wt range of 100,000-300,000. An oil-resistant
synthetic rubber, with predominantly trans configuration
made by polymerization of chloroprene. Prepn: W. H. Carothers et al., J. Am. Chem. Soc. 53, 4203 (1931). Review: P. J. Johnson in Kirk-Othmer Encyclopedia of Chemical Technology vol. 8 (Wiley-Interscience, New York, 3rd ed., 1979)
pp 515-534.
Properties
d20 approx 1.23. nD20 approx 1.5512. Brittle point: -35°. Softens ca. 80°. Has high tensile
strength, resilience and abrasion resistance.Use
In mechanical and automotive products; as wire and
cable jackets, gaskets, roof coatings, binder for fibers.