| Qualitative phase diagrams were constructed using the contact method for binary mixtures of several low molar mass nematogens (LMMN) with a main-chain liquid crystal polymer (LCP), TPBx, which has a mesogenic group, 1-(4-hydroxy-;The twist and bend viscosities of dilute nematic solutions of TPB10 in 5OCB were determined over a wide range of molecular weight via dynamic light scattering analysis. As the molecular weight is increased from oligomers to high polymer a decrease in the exponent ;An odd-even variation in viscoelastic properties with spacer length of TPBx is found. TPB2n/5OCB mixtures have substantially lower splay and twist decay rates and slightly higher bend decay rate than TPB2n+1/5OCB mixtures. These differences are primarily due to changes in the associated viscosity coefficients, suggesting that the TPB2n has a more extended chain configuration along the director.;Finally, the viscoelastic properties of dilute nematic solutions in 5OCB of the cyclic liquid crystal oligomer Cy-TPB10 and a hyperbranched LCP, TPD-b-8, based on 10-bromo-1-(4-hydroxy-... |
