화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea-Australia Rheology Journal, Vol.16, No.3, 135-140, September, 2004
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Evaluation of interfacial tension for poly(methyl methacrylate) and polystyrene by rheological measurements and interaction parameter of the two polymers
Y.T. Sung, W.J. Seo, Y.H. Kim, H.S. Lee1, and W.N. Kim†
  • Department of Chemical and Biological Engineering, Applied Rheology Center, Korea University, Anam-dong, Seoul 136-701, Korea
  • 1Tech. Center, LG Chemical Ltd., 84, Jang-dong, Yusung-Ku, Taejeon 305-343, Korea
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Morphological and rheological properties of the poly(methyl methacrylate) (PMMA) and polystyrene (PS) blends were studied by scanning electron microscopy (SEM) and advanced rheometric expansion system (ARES). From the SEM results, the PMMA-PS blends showed dispersed morphology and the particle size of the dispersed phase was quite small (0.1 ~ 0.6 μm) compared with other immiscible polymer blends. Values of the interfacial tension of the PMMA-PS blend were obtained from the Choi-Schowalter and the Palierne emulsion models using the storage modulus of the PMMA and PS, and found to be 1.0 and 2.0 mN/m, respectively. The interfacial tension between the PMMA and PS was also calculated from the Flory-Huggins polymer-polymer interaction parameter (χ) and found to be from 0.98 to 1.86 mN/m depending on the molecular weight and composition. Comparing the values of the interfacial tension from the Flory-Huggins polymer-polymer interaction parameter and the values measured by oscillatory rheometer, it is suggested that the interfacial tension of the PMMA-PS blend obtained from the polymer-polymer interaction parameter are in good agreement with the values obtained by rheological measurements.
Keywords:interfacial tension;emulsion models;polymer-polymer interaction parameter
  1. Broseta D, Fredrickson GH, Helfand E, Leiber L, Macromolecules, 23, 132 (1990) 
  2. Burns CM, Kim WN, Polym. Eng. Sci., 28, 1362 (1988) 
  3. Choi SJ, Schowalter WR, Phys. Fluids, 18, 420 (1975) 
  4. Chun YS, Han M, Park J, Kim WN, Korea-Aust. Rheol. J., 12(2), 101 (2000)
  5. Friedrich C, Gleinser W, Korat E, Maier D, Weese J, J. Rheol., 39(6), 1411 (1995) 
  6. Graebling D, Muller R, J. Rheol., 34, 193 (1990) 
  7. Graebling D, Muller R, Palierne JF, Macromolecules, 26, 320 (1993) 
  8. Gramespacher H, Meissner J, J. Rheol., 36, 1127 (1992) 
  9. Gramespacher H, Meissner J, J. Rheol., 41(1), 27 (1997) 
  10. Han M, Park J, Cheen SW, Kim SH, Kim WN, Polym. Bull., 45(2), 151 (2000) 
  11. Han M, Kim WN, Giles DW, Polym. Eng. Sci., 41(9), 1506 (2001) 
  12. Han MS, Lim BH, Jung HC, Hyun JC, Kim SR, Kim WN, Korea-Aust. Rheol. J., 13(4), 169 (2001)
  13. Helfand E, Tagami Y, J. Chem. Phys., 56, 3592 (1972) 
  14. Helfand E, Sapse AM, J. Chem. Phys., 62, 1327 (1975) 
  15. Helfand E, Bhattacharjee SM, Fredrickson GH, J. Chem. Phys., 91, 7200 (1989) 
  16. Helfand E, Macromolecules, 25, 1676 (1992) 
  17. Lee HS, Denn MM, J. Rheol., 43(6), 1583 (1999) 
  18. Luciani A, Champagne MF, Utracki LA, J. Polym. Sci. B: Polym. Phys., 35(9), 1393 (1997) 
  19. Martinez CB, Williams MC, J. Rheol., 24, 421 (1980) 
  20. Palierne JF, Rheol. Acta, 29, 204 (1990) 
  21. Rundqvist T, Cohen A, Klason C, Rheol. Acta, 35(5), 458 (1996) 
  22. Scholz P, Froelich D, Muller R, J. Rheol., 33, 481 (1989) 
  23. Sung YT, Han MS, Hyun JC, Kim WN, Lee HS, Polymer, 44(5), 1681 (2003) 
  24. Tang H, Freed KF, J. Chem. Phys., 94, 1572 (1991) 
  25. Tang H, Freed KF, J. Chem. Phys., 94, 6307 (1991)