Anisotropic orientational behaviour of liquid crystalline polymer

  • Han Shi-fang  (韩式方)Email author
  • Wang Yu-bin  (毓宾)
  • Han Yu-lian  (韩毓莲)


For describing anisotropic behaviour of the material, thermotropic and lyotropic liquid crystalline polymers were investigated by polariscope to take microstructural photos. Experimental investigation on the rheological and rheo-optical behaviour of the HPC was reported. The HPC was used in a extrusion test, a small contraction, nearly planar extrudate and resonance instability due to shear disturbance were observed when the lyotropic LC polymer HPC solution was extruded. A simple stability theory of orientational motion of director vector was developed for the LC polymer fluid that extended flow of thermotropic LC polymer melts is very effective in producing a high degree of macroscopic orientation.

Key words

liquid crystalline polymer microstructural state of LC polymer contraction of extrudate of HPC solution extrusion-extensional flow orientational stability theory 


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Copyright information

© Central South University Press, Sole distributor outside Mainland China: Springer 2007

Authors and Affiliations

  • Han Shi-fang  (韩式方)
    • 1
    Email author
  • Wang Yu-bin  (毓宾)
    • 1
  • Han Yu-lian  (韩毓莲)
    • 1
  1. 1.Chengdu Institute of Computer ApplicationChinese Academy of SciencesChengduChina

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