Mesophase formation in high molecular-weight xanthan solutions

  title={Mesophase formation in high molecular-weight xanthan solutions},
  author={Catherine Allain and Jacqueline Lecourtier and Guy Chauveteau},
  journal={Rheologica Acta},
After a short review of theoretical background on mesophase formation in polymer solutions, this paper describes the liquid crystal phase transition and the corresponding rheological properties for aqueous solutions of a high-molecularweight xanthan sample (Mw ≈ 1.8 ⋅ 106). The formation of mesophases has been studied using polarizing microscopy and viscometry. The effects of the presence of salts, bacteria cells and proteins have been investigated. The variations in the viscosity, due to… CONTINUE READING