화학공학소재연구정보센터
Korea-Australia Rheology Journal, Vol.14, No.3, 115-119, September, 2002
A rheo-optical investigation of shear-induced morphological changes in biopolymeric blends
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In this paper, a rheo-optical methodology based on small angle light scattering and polarimetry is applied to investigate in-situ and on a time resolved basis the flow-induced structures in aqueous biopolymeric blends. Water-dextran-gelatin is chosen as an example. It is verified to what extent the laws and scaling relations, originally developed for synthetic polymer blends, are valid for the morphology development in this aqueous biopolymeric mixture. It was observed that under low shear rate conditions, the biopolymeric emulsion can be regarded as a conventional emulsion. However, at high shear rates flow induced homogenization occurs.
  1. Antonov YA, Grinberg VY, Zharavskaya NA, Tolstoguzov VB, J. Text. Stud., 11, 199 (1980)
  2. Blonk JCG, VanEnedenburg J, Koning MMG, Carbohydrate Polym., 28, 287 (1995) 
  3. Foster TJ, Underdown J, Brown CRT, Ferdinando DP, Norton IT, Emulsion behaviour of Non-Gelled Biopolymer Mixtures, in : Dickinsion, E. and B. Bergenstahl Eds., Food Colloids, Proteins, Lipids and Polysaccharides, pp. 346-356, Cambridge RSC (1997)
  4. Gerard H, Higgins JS, Phys. Chem. Chem. Phys., 1, 3059 (1999) 
  5. Koningveld R, Staverman AJ, J. Polym. Sci. A: Polym. Chem., 2, 305 (1968)
  6. Langton M, Jordansson E, Altskar A, Sorensen C, Hermanssen A, Food Hydrocolloids, 13, 113 (1999) 
  7. Norton IT, Frith WJ, Food Hydrocolloids, 15, 543 (2002) 
  8. Polyakov VI, Grinberg VY, Tolstoguzov VB, Polym. Bull., 2, 760 (1980)
  9. Rossmurphy SB, J. Rheol., 39(6), 1451 (1995) 
  10. Scholten E, Tuinier R, Tromp RH, Lekkerkerker HNW, Langmuir, 18(6), 2234 (2002) 
  11. Simeone M, Mole F, Guido S, Food Hydrocolloids, in press (2002)
  12. Tucker CL, Moldenaers P, Annu. Rev. Fluid Mech., 34, 177 (2002) 
  13. VanEgmond J, Fuller GG, J. Chem. Phys., 96, 7742 (1992) 
  14. VanPuyvelde P, Antonov YA, Moldenaers P, Food Hydrocolloids, 16, 395 (2002) 
  15. VanPuyvelde P, Antonov YA, Moldenaers P, Food Hydrocolloids, in press (2002)
  16. Vermant J, Van Puyvelde P, Moldenaers P, Mewis J, Fuller GG, Langmuir, 14(7), 1612 (1998) 
  17. Wolf B, Frith WJ, Norton IT, J. Rheol., 45(5), 1141 (2001) 
  18. Yang H, Zhang HJ, Moldenaers P, Mewis J, Polymer, 39(23), 5731 (1998)