Effects of monomer impurities on the emulsion polymerization of chloroprene and properties of polychloroprene. IV. Effect of 1‐chloro‐1,3‐butadiene

Publisher Website
Google Scholar
Abstract
The influence of small amounts of 1‐chloro‐1,3‐butadiene on the kinetics of the emulsion polymerization of 2‐chloro‐1,3‐butadiene and on properties of the resulting polychloroprene has been studied. Some changes in the properties of the chloroprene polymers were observed at 1‐chloro‐1,3‐butadiene concentrations in monomer as relatively high as about 5%. Polymer prepared in the presence of 5% 1‐chloro‐1,3‐butadiene had decreased tensile strength, and also its crystallization tendency was somewhat lowered. At 1‐chloro‐1,3‐butadiene concentrations near 1% or higher, the polychloroprene obtained had worsened thermo‐oxidation stability which resulted in crosslinking during aging. The kinetics of emulsion polymerization of chloroprene are not influenced by 1‐chloro‐1,3‐butadiene up to 5%.