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Polyisoprene vulcanization accelerated by morpholinobenzothiazole sulfenamides

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dc.contributor.advisor Gradwell MHS, Dr en
dc.contributor.author Hendrikse KG en
dc.date.accessioned 2016-09-22T13:19:01Z
dc.date.available 2016-09-22T13:19:01Z
dc.date.submitted 1995 en
dc.identifier.uri http://hdl.handle.net/20.500.11892/157478
dc.description.abstract The rates of decomposition of mixtures of 2-(4-morpholinothio)benzothiazole (MOR) and 2-(4-morpholinodithio)benzothiazole (MDB) with sulfur, ZnO and 2-mercaptobenzothiazole (MBT) were studied by heating appropriate mixtures to various temperatures in a differential scanning calorimeter (DSC) at a programmed rate. Decomposition products were identified and quantified by high performance liquid chromatography (HPLC). Reaction mechanisms to account for the products are proposed. MDB was shown to be thermally less stable than MOR. Polyisoprene, compounded with these curatives, was vulcanized by heating in the DSC. The reaction was stopped at various temperatures and the system characterized by measuring the crosslink density in the rubber, and by HPLC analysis of the extractable curatives and reaction intermediates. It was shown that the reaction mechanism was similar to that which applies to N-cyclohexylbenzothiazole sulfenamide (CBS) accelerated systems. MDB does not delay scorch. en
dc.language English en
dc.title Polyisoprene vulcanization accelerated by morpholinobenzothiazole sulfenamides en
dc.type Masters degree en
dc.description.degree MSc en

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