Free‐Radical stabilizers for the thiol/ene‐systems

Abstract

Abstract By means of calorimetric investigations it is shown that dithiol/diene‐mixtures show a more or less distinct spontaneous dark reaction, without light and in the absence of initiators. Pyrogallol, hydroquinone and catechol were tested as stabilizers. The efficacy of the stabilizer to transform the radicals resulting from charge transfer interaction of the thiol with the ene component into an inactive species decreases in the order mentioned above.