Microdomain Composition in Two-Phase Hydrogels

  • C. G. Varelas
  • A. J. Dualeh
  • C. A. Steiner


Hydrogels which form spontaneously from surface-active graft copolymers in solution are characterized by two distinct phases — a continuous phase consisting of water and the hydrophilic backbones of the polymer chains, and a dispersed phase composed of clusters of the hydrophobic side chains. The composition of these clusters, or microdomains, has been investigated using fluorescence probe techniques, and was found to depend on the composition of the solvent. The microdomain composition in turn influences the bulk network properties, since the microdomains act as linkage points in the network. In addition, hydrophobic solutes permeating the network are absorbed into the microdomains, permitting higher solute loading into these hydrogels than in equivalent volumes of water.


Block Copolymer Critical Micelle Concentration Graft Copolymer Microphase Separation Sodium Dodecyl Sulfate Concentration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Dualeh AJ, Steiner CA (1990) Macromolecules 23:251CrossRefGoogle Scholar
  2. 2.
    Dualeh AJ, Steiner CA (1991) Macromolecules 24:112CrossRefGoogle Scholar
  3. 3.
    Varelas CG, Steiner CA (1990) In: Brannon-Peppas L, Harland RS (eds) Absorbent Polymer Technology. Elsevier, Amsterdam, p 259Google Scholar
  4. 4.
    Varelas CG, Steiner CA (1992) J Polym Sci B: Polym Phys Ed, 30:1233CrossRefGoogle Scholar
  5. 5.
    Varelas CG, Dixon DG, Steiner CA, AIChE J, submittedGoogle Scholar
  6. 6.
    Varelas CG (1991) Structural analysis and applications of polymer networks formed from surface-active copolymers in aqueous solvents. Ph.D. Thesis, Department of Chemical Engineering, The City College of the City University of New York, New YorkGoogle Scholar
  7. 7.
    Higgins JS, Dawkins JV, Maghami CG, Shakir SA (1986) Polymer 27:931CrossRefGoogle Scholar
  8. 8.
    Tuzar Z, Stepanek P, Konak C, Kratochvil P (1985) J Colloid Interface Sci 105:372CrossRefGoogle Scholar
  9. 9.
    Price C (1983) Pure and Appl Chem 55:1563CrossRefGoogle Scholar
  10. 10.
    Krause SJ, Haddock TJ (1986) Polym Sci B: Polym Phys 24:1991CrossRefGoogle Scholar
  11. 11.
    Ikemi M, Odagiri N, Tanaka S, Shinohara I, Chiba A (1982) Macromolecules 15:281CrossRefGoogle Scholar
  12. 12.
    Eliassaf J (1965) Polymer Letters 3:767CrossRefGoogle Scholar
  13. 13.
    Krause S (1985) In: Lloyd DR (ed) Materials Science of Synthetic Membranes. Am Chem Soc Symp Ser 269, ACS, Washington, DC, p 351Google Scholar
  14. 14.
    Misra BN, Mehta IK, Khetarpal RC (1984) J Polym Sci: Polym Chem Ed 22:2767CrossRefGoogle Scholar
  15. 15.
    Henderson CP, Williams MC (1985) Polymer 26:2021CrossRefGoogle Scholar
  16. 16.
    Shibanov YD, Godovsky YK (1985) Colloid Polym Sci 263:202CrossRefGoogle Scholar
  17. 17.
    Meyer GC, Widmaier JM (1982) J Polym Sci B: Polym Phys Ed 20:389Google Scholar
  18. 18.
    Jiang M, Cao X, Yu T (1986) Polymer 27:1923CrossRefGoogle Scholar
  19. 19.
    de la Cruz M, Sanchez IC (1986) Macromolecules 19:2501CrossRefGoogle Scholar
  20. 20.
    Bock J, Valint Jr PL, Pace SJ, Siano DB, Schulz DN, Turner SR (1988) In: Stahl GA, and Schulz DN (eds) Water-soluble polymers for petroleum recovery. Plenum Publishing Corp., New York, p 147Google Scholar
  21. 21.
    Valint Jr PL, Bock J, Schulz DN (1989) In: Glass JE (ed) Polymers in Aqueous Media: Performance Through Association. ACS Advances in Chemistry Series No. 223, American Chemical Society, Washington, DC, ch 21, p 399Google Scholar
  22. 22.
    Bock J, Siano DB, Valint Jr PL, Pace SJ, ibid ch 22, p 411Google Scholar
  23. 23.
    Siano DB, Bock J, Myer P, Valint Jr PL, ibid ch 23, p 425Google Scholar
  24. 24.
    Schulz DN, Kaladas JJ, Maurter JJ, Bock J, Pace SJ, Schulz WW (1987) Polymer 28:2110CrossRefGoogle Scholar
  25. 25.
    Kalyanasundaram K, Thomas JK (1977) J Am Chem Soc 99:2039CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • C. G. Varelas
  • A. J. Dualeh
  • C. A. Steiner

There are no affiliations available

Personalised recommendations