Epoxy systems are widely applied as adhesives in the aerospace industry. They have excellent adhesion properties, however, being thermosetting, epoxy show fracture brittleness characteristics. Polysulfide and polymercaptans good options to increase flexibility of adhesive. Thermal analysis techniques generally used evaluate curing degree systems. In most cases, when infrared (IR) is used, it em...

Large water-soluble gold clusters are used for the labelling of biological material to visualize the posi­ tion of reactive sites by electron microscopy [1]. In most investigations of this type a commercial prod­ uct was used, for which little chemical information has been published (for review see [9]). Large gold clusters can be prepared using phosphines as lig­ ands [2, 3] or more easily wit...

Mercaptans are commonly present in petroleum products. Their foul odor and highly corrosive nature make them the most undesirable sulfur compounds so they should be removed because of environmental issues. Merox process is used for oxidation of mercaptans to disulfide using air in the presence of alkaline solution and Merox catalyst. In this paper, due to lack of information about the kinetic o...

Mercaptans are commonly present in petroleum products. Their foul odor and highly corrosive nature make them the most undesirable sulfur compounds so they should be removed because of environmental issues. Merox process is used for oxidation of mercaptans to disulfide using air in the presence of alkaline solution and Merox catalyst. In this paper, due to lack of information about the kinet...