Polymer Technology Group

Rheo-Optic Apparatus

An optical train directs light through transparent parallel plates at normal incidence. Transmitted light is received directly by a detector for dichroism measurements, or after passing through a circular polarizer for birefringence measurements. Applications include determination of the stress optical coefficient, separating the component dynamics in compatible polymer blends, analysis of polydomain structure in liquid crystals, and reorientation of internal structure under flow.