Matsuda, Takeshi published the artcileRelease behavior of pH sensitive microcapsules containing corrosion inhibitor, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate), the main research area is core shell pH sensitive microcapsules release behavior corrosion inhibitor.
A pH sensitive microcapsule (pH-MC) which can be decomposed in corrosive environments on metal substrates was synthesized and its release behavior was investigated. Ester chains which can be hydrolyzed under both alk. and acidic conditions were successfully introduced into the shell wall of the pH-MC. In sep. sets of experiments, cerium nitrate was encapsulated as a corrosion inhibitor, whereas aluminum nitrate was used to investigate the release property due its amphoteric nature. Study of the release behavior with the aluminum nitrate-containing pH-MC (Al-MC) demonstrated that the Al-MCs are sensitive to acidic and basic environments and are inactive in neutral environments. It was also found that hydrolysis of the ester chains occurred prior to release of the core materials. When immersed in an electrolyte with the cerium nitrate-containing pH-MC (Ce-MC), the open circuit potential (OCP) of a steel substrate showed a nobler potential than when immersed in an electrolyte without Ce-MC.
Progress in Organic Coatings published new progress about Corrosion inhibitors. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate).
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