Korea-Australia Rheology Journal

The Korean Society of Rheology (한국유변학회)
권호 표지

Polymer blends with a liquid crystalline polymer dispersed phase

  • Lee, Heon-Sang (Materials Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemical Engineering, University of California at Berkeley) ;
  • Morton M. Denn (The Benjamin Levich Institute for Physico-Chemical Hydrodynamics and Department of Chemical Engineering City College of the City University of New York)
  • Published : 1999.12.01
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Abstract

Immiscible polymer blends containing a liquid crystalline polymer dispersed phase can be described by existing blend theories when the dispersed-phase droplets are large relative to the orientation correlation length ("domain size") of the LCP. There does not appear to be an interfacial contribution to the linear viscoelastic properties of the blend from droplets smaller than the correlation length. Polyester blends, where interfacial interactions occur between the LCP and the matrix, exhibit a reduction in viscosity to below the viscosity of either component at low shear rates, where the droplet morphology is spherical. These anomalies cannot be explained in the context of existing theory.ng theory.

Keywords

References

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