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Crosslink reaction of natural rubber with thiuram sulphur donors in the presence of a thiuram monosulfide
Author(s) -
González L.,
Rodríguez A.,
Del Campo A.,
MarcosFernández A.
Publication year - 2002
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.10438
Subject(s) - vulcanization , natural rubber , polymer chemistry , chemistry , sulfur , polymerization , polymer science , double bond , organic chemistry , polymer
The vulcanization of natural rubber was studied with the sulfurating agents dipentamethylene thiuram tetrasulfide (DPTT) and tetramethylene thiuram disulfide (TMTD) in the presence of tetramethyl thiuram monosulfide (TMTM). This last accelerant affects the rate and efficiency of the vulcanization as well as the structures of crosslinks formed by the two sulphur donors. It may give rise to a polymerization between adjacent double bonds and generate a inhomogeneous crosslink distribution with an adverse effect on physical properties. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 491–499, 2002