Morphology and Deformation Behaviour of a Liquid Crystalline Polymer Containing Laterally Attached Pentaphenyl Rods
Chemistry and Biochemistry
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.
Macromolecular Chemistry and Physics
(2005). Morphology and Deformation Behaviour of a Liquid Crystalline Polymer Containing Laterally Attached Pentaphenyl Rods. Macromolecular Chemistry and Physics, 206(2), 233-239.
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