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Effects of monomer impurities on the emulsion polymerization of chloroprene and properties of polychloroprene. III. Effect of divinylacetylene
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.1971.070151018
Subject(s) - chloroprene , monomer , polymer chemistry , neoprene , polymerization , emulsion polymerization , emulsion , materials science , chemistry , chemical engineering , organic chemistry , polymer , natural rubber , engineering
The presence of small amounts of divinylacetylene in the monomer during the emulsion polymerization of chloroprene results in substantial increase of the molecular weight, gel formation, and in corresponding changes of physical and mechanical properties of vulcanizates. These changes appear at concentrations of divinylacetylene as low as 0.05% in chloroprene. The polymerization kinetics of chloroprene are influenced to a relatively small extent.