Introduction to a new class of high performance light stabilizers and the influence of light stabilizers structure on the polymer's life time
1997
The mode of action of two classes of UV absorbers (2-(hydroxyphenyl)benzotriazoles and 2-(2'-hydroxyphenyl)-1,3,5-triazines) is discussed. Theoretical explanations for the superior light stability of the latter are given and confirmed by measured half life times in polycarbonate and solution. A mathematical model for the quantitative prediction of light protection factors is proposed.
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