Morphology and Deformation Behaviour of a Liquid Crystalline Polymer Containing Laterally Attached Pentaphenyl Rods

Authors

Chaobin He, University of Southern MississippiFollow
Puwei Liu, University of Southern MississippiFollow
Anselm C. Griffin, University of Southern MississippiFollow
Christopher W. Smith, University of Exeter
Kenneth E. Evans, University of Exeter

Document Type

Article

Publication Date

1-21-2005

Department

Chemistry and Biochemistry

School

Mathematics and Natural Sciences

Abstract

The morphology-and deformation behaviour of a liquid crystalline polymer, consisting of both, laterally attached transverse rods and terminally attached rods were studied. A plaque specimen of the polymer was prepared using the melt-compression method, which exhibited highly anisotropic Poisson's ratio behaviour. In its through-thickness direction its Poisson's ratio was approximately 0.54, and in the in-plane it was approximately 0.43. This anisotropic behaviour is explained by the anisotropic morphology of the polymer plaque resulting from its compression preparation. The high Poisson's ratio in the through-thickness direction is due to the unusual chain structure of the polymer. A simple analytical model is presented to describe the nonlinear strain dependent Poisson's ratio behaviour of the material.

Publication Title

Macromolecular Chemistry and Physics

Volume

206

Issue

2

First Page

233

Last Page

239

Recommended Citation

He, C., Liu, P., Griffin, A. C., Smith, C. W., Evans, K. E. (2005). Morphology and Deformation Behaviour of a Liquid Crystalline Polymer Containing Laterally Attached Pentaphenyl Rods. Macromolecular Chemistry and Physics, 206(2), 233-239.
Available at: https://aquila.usm.edu/fac_pubs/9084