Abstract
AbstractThe influence of the concentration of tetramethylthiuram disulphide on the kinetics and degree of the sulphur‐free vulcanisation of pale crepe in the absence and in the presence of thiourea has been investigated. Rate and degree of the vulcanisation increase with concentration of tetramethylthiuram disulfide to a certain limit. Exceeding this limit the values of the rate constant and the crosslinking density decrease. Due to the presence of thiourea the rate of the vulcanisation is increased and the final degree of vulcanisation is decreased. This effect of thiourea also depends on the concentration of tetramethylthiuram disulphide. On the basis of the above results the mechanism of the tetramethylthiuram disulphide vulcanisation is discussed.
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