Title

Molecular Weights and Solution Properties of a Series of Side-Chain Liquid Crystalline Polymers with Ethylene Oxide Spacers

Document Type

Article

Publication Date

11-1-1987

Abstract

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)

Macromolecules

First Page

2853

Last Page

2858

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