Aliphatic amines for use as long-term heat stabilizers for polypropylene

Amine functional reactive coalescing agents (RCA) for emission-free waterborne paints and coatings

The unique characteristics of simple acid-base interactions have been exploited in designing new amine-functional reactive coalescing agents (RCAs). In addition to properties similar to commercial state-of-the-art coalescing agents (CAs), these RCAs possess reactivity that makes them suitable for producing true VOC-free/emission-free waterborne coatings.

Electrosynthesis of hindered alkyl diamines: evidence for an electrocatalytic anodic mechanism

The electrosynthesis of highly hindered secondary alkyl diamines through the formation of C-N bonds has been successfully performed in one-pot under mild conditions using an environmentally friendly method. The electrochemical behavior of four hindered secondary alkyl amines (di-tert-butylamine (1), tert-amyl-tert-butylamine (2), di-tert-amylamine (3) and tert-amyl-tert-octylamine (4)) is described. Effects not only of the initial concentration of the corresponding di-tert-akylamine but also of the time on the initial oxidation scan are reported for the first time for the electrochemical behavior of an aliphatic amine. Moreover, valuable mechanistic information has been provided from analysis of the intermediate species and final products generated when electrochemical oxidation was performed. An electrocatalytic mechanism based on the propagation of free radical species leading to highly hindered diamines has been tentatively proposed. The key role played by the radical cation as the intermediate initiator involved in the subsequent propagation cycle has been demonstrated.