Photoakustik-spektroskopische Untersuchungen an Lösungen von Farbstoffen in Polymermatrizen

Abstract

Dyes solved in polymer matrixes are ideal systems to examine the RG theory. PVA and PVP were used as matrixes. In these polymer matrixes the thermal properties are given by the matrix molecules being present in excess. The dye molecule serves as an indicator. Thus the thermal properties, specific heat, temperature and heat conductivity of the matrix can be measured for thermally thick layers. Further investigations to examine the RG theory show, that this theory can be used for the quantitative evaluation of PA measurements of thermally thick, non scattering samples.