The LC/MS/MS characterization of photolysis products of benzotriazole-based ultraviolet absorbers

• Published in: Polymer degradation and stability Vol. 48; no. 1; pp. 111 - 120
• Main Authors: Dearth, Mark A., Korniski, T.J., Gerlock, J.L.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 1995; Elsevier Science
• Subjects: Applied sciences; Compounding ingredients; Exact sciences and technology; Polymer industry, paints, wood; Stabilizers (antioxydants, antiozonants, etc.); Technology of polymers; Solvent effect; Ultraviolet radiation; Reaction mechanism; Phenols; Light stabiliser; Experimental study; Degradation product; Mass spectrometry; Benzotriazole; Photochemical degradation

The photodegradation of Tinuvins P, 328, and 900 (Ciba-Geigy) under mild conditions was confirmed by conducting photolysis in methanol, ethanol, and acetonitrile solvents with azo(bis)isobutyronitrile (AIBN, a radical source) or cumene hydroperoxide. Benzotriazole was the major photolytic product ob...