Guest-Host Systems: a Comparison of low Molecular and Polymeric Systems

Abstract
Some properties of low molecular and polymeric guest-host systems are compared. Central points are the dependence of the order parameter S(Dye), measured by absorption spectroscopy, as a function of the dye concentration and its influence on the phase behaviour. The systems used were anthraquinone dyes dissolved in phases containing cyano biphenyl derivatives as mesogenic groups. Some few statements concerning copolymeric guest-host systems were given.