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Effects of monomer impurities on the emulsion polymerization of chloroprene and properties of polychloroprene. IV. Effect of 1‐chloro‐1,3‐butadiene
Author(s) -
Sufčák Miloslav
Publication year - 1971
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1971.070151019
Subject(s) - chloroprene , neoprene , monomer , polymer chemistry , emulsion polymerization , emulsion , polymerization , kinetics , polymer , materials science , 1,3 butadiene , ultimate tensile strength , chemistry , organic chemistry , natural rubber , composite material , catalysis , physics , quantum mechanics
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%.