Full Paper
Synthesis and Dielectric Study of New Liquid-crystalline Polysiloxanes Presenting a Thioether Spacer
Abstract
Three new cyanobiphenyl polysiloxanes presenting long thioether spacers have been carried out. This type of spacer leads to very stable liquid-crystalline polymers at room temperature and remove the crystallinity phenomenon. Dielectric analysis results show that the thioether spacer brings much more molecular flexibility to the system.
Example of an “interdigitated” structure observed by X-ray analysis.
