Macromolecular Research

, Volume 11, Issue 2, pp 104–109 | Cite as

Effect of rubber on microcellular structures from high internal phase emulsion polymerization

  • Ji Sun Choi
  • Byoung Chul Chun
  • Seong Jae Lee


A microcellular foam, which combines a rubber with the conventional formulation of styrene/divinylbenzene/ sorbitan monooleate/water system, was prepared using high internal phase emulsion (HIPE) polymerization. Although the open microcellular foam with low density from the conventional HIPE polymerization shows highly porous characteristics with fine, regular and isotropic structure, the one having much smaller cell size is desirable for various applications. In this study, a polybutadiene was introduced to reduce the cell size with comparable properties. Major interests were focused on the effects of rubber concentration and agitation speed on the cell sizes and compression properties. Scanning electron microscopy was used to observe the microcellular morphology and compression tests were conducted to evaluate the stress-strain behaviors. It was found that the cell size decreased as rubber concentration increased, reflecting a competition between the higher viscosity of continuous phase and the lower viscosity ratio of dispersed to continuous phases due to the addition of high molecular weight rubber into the oil phase of emulsion. A correlation for the average cell size depending on agitation speed was attempted and the result was quite satisfactory.


microcellular foam high internal phase emulsion (HIPE) polybutadiene cell size compression property. 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. (1).
    N. R. Cameron and D. C. Sherrington,Adv. Polym. Sci.,126, 163 (1996).Google Scholar
  2. (2).
    D. Barby and Z. Haq, European Patent 0,060,138 (1982).Google Scholar
  3. (3).
    Z. Bhumgara,Filtration Separation,32(3), 245 (1995).CrossRefGoogle Scholar
  4. (4).
    R. J. Wakeman, Z. B. Bhumgara, and G. Akay,Chem. Eng. J.,70, 133 (1998).Google Scholar
  5. (5).
    R. J. Stokes and D. F. Evans,Fundamentals of Interfacial Engineering, Wiley-VCH, New York, 1997, pp 263–268.Google Scholar
  6. (6).
    J. R. Duke, M. A. Hoisington, D. A. Langlois, and B. C. Benicewicz,Polymer,39, 4369 (1998).CrossRefGoogle Scholar
  7. (7).
    J. M. Williams,Langmuir,4, 44 (1988).CrossRefGoogle Scholar
  8. (8).
    J. M. Williams and D. A. Wrobleski,Langmuir,4, 656 (1988).CrossRefGoogle Scholar
  9. (9).
    S. Sotiropoulos, I. J. Brown, G. Akay, and E. Lester,Mater. Lett.,35, 383 (1998).CrossRefGoogle Scholar
  10. (10).
    H. Tai, A. Sergienko, and M. S. Silverstein,Polymer,42, 4473 (2001).CrossRefGoogle Scholar
  11. (11).
    H. G. Jeoung, S. J. Ji, and S. J. Lee,Polymer (Korea),26, 759 (2002).Google Scholar
  12. (12).
    G. F. Freeguard,Polymer,13, 366 (1972).CrossRefGoogle Scholar
  13. (13).
    H. P. Grace,Chem. Eng. Commun.,14, 225 (1982).CrossRefGoogle Scholar
  14. (14).
    J. M. H. Janssen and H. E. H. Meijer,J. Rheol.,37, 597 (1993).CrossRefGoogle Scholar
  15. (15).
    R. Shinnar,J. Fluid Mech.,10, 259 (1961).CrossRefGoogle Scholar
  16. (16).
    D. I. Collias and R. K. Prud’homme,Chem. Eng. Sci.,47, 1401 (1992).CrossRefGoogle Scholar
  17. (17).
    L. E. Nielsen and R. F. Landel,Mechanical Properties of Polymers and Composites, Marcel Dekker, New York, 1994, pp 411–422.Google Scholar

Copyright information

© The Polymer Society of Korea and Springer 2003

Authors and Affiliations

  • Ji Sun Choi
    • 1
  • Byoung Chul Chun
    • 1
  • Seong Jae Lee
    • 1
  1. 1.Department of Polymer EngineeringThe University of SuwonKyonggiKorea

Personalised recommendations