BACKBONE CONFORMATION STUDY ON SIDE-ON FIXED LIQUID-CRYSTAL POLYMERS

Recent studies an the backbone conformation of ''side-on fixed'' therm otropic LCPs tend to focus on the following question: what about the a nisotropy of the backbone in the orientational medium imposed by its m esogenic groups in the nematic and the smectic C phases? By means of s mall-angle neutron scattering (SANS), different features are qualitati vely and quantitatively discussed, The chain anisotropy is essentially driven by thermodynamical, structural and chemical consideration and is compared to the behaviour of other LCPs as ''side-end fixed'' and m ain chain LCPs.