Molecular Weights and Solution Properties of a Series of Side-Chain Liquid Crystalline Polymers with Ethylene Oxide Spacers
A homologous series of methacrylate side-chain liquid crystalline (LC) homopolymers and copolymers was studied in solution by several techniques. The molecular weight distributions and some hydrodynamic and thermodynamic parameters were calculated. A decrease in the dn/dc values of the copolymers compared to those of their corresponding homopolymers was attributed to a higher density in solution of the homopolymers presumably caused by biphenyl-biphenyl interaction. A large discrepancy was found between the molecular weights found by classical size exclusion chromatography and those found by direct methods. Also an odd-even effect as a function of spacer length was seen in the exponent of the viscosity law and the Flory x value. © 1987, American Chemical Society. All rights reserved.
Publication Source (Journal or Book title)
Duran, R., & Strazielle, C. (1987). Molecular Weights and Solution Properties of a Series of Side-Chain Liquid Crystalline Polymers with Ethylene Oxide Spacers. Macromolecules, 20 (11), 2853-2858. https://doi.org/10.1021/ma00177a035