Gels pp 26-31 | Cite as

Rheological properties of modified cellulosic polymers in semi-dilute regime: Effect of salinity and temperature

  • L. Picton
  • G. Muller
Conference paper
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 102)


The rheological properties of low molecular weight (LW) and high molecular weight (HW) hydrophobically modified hydroxyethylcellulose (HMHEC) have been studied in semi-dilute regime of concentration (C>C*) and compared with their unmodified parent polymers (HEC). Flow behavior and viscoelastic properties of modified polymers as a function of salt (NaCl, KSCN), temperature (20–60°C) and shear rate (0.1–1000 s−1) are explained by the existence of hydrophobic interactions. These latter are reinforced in the presence of water structure makers (NaCl).

Key words

Associative polymer amphiphilic viscosity rheology viscoelastic 


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  1. 1.
    Biggs S, Selb J, Candau F (1992) Langmuir 8:838–847CrossRefGoogle Scholar
  2. 2.
    Schulz DN, Kaladas JJ, Maurer JJ, Bock J, Pace SJ, Schulz WW (1987) Polymer 28:2110–2115CrossRefGoogle Scholar
  3. 3.
    Mc Cormick CL, Nonaka T, Johnson CB (1988) Polymer 29:731–739CrossRefGoogle Scholar
  4. 4.
    Wang KT, Iliopoulos I, Audbert R (1988) Polym Bul 20:577–582Google Scholar
  5. 5.
    Landoll LM (1982) J of Polym Sci, Polym Chem Ed 20:443–455CrossRefGoogle Scholar
  6. 6.
    Akiyoshi K, Degushi S, Morigushi N, Yamagushi S, Sunamoto J (1993) Macromol 26:3062–3068CrossRefGoogle Scholar
  7. 7.
    Gelman RA, Barth HG (1986) In: Glass JE Ed., “Water Soluble Polymers: beauty with performance”, Adv in Chem Series 213 pp 101–110, Am Chem Soc, Washington DCGoogle Scholar
  8. 8.
    Tanaka R, Meadows J, Phillips GO, William PA (1990) Carbohydrate Polymers 12:443–459CrossRefGoogle Scholar
  9. 9.
    Magny B, Iliopoulos I, Audebert R (1991) Polymer Communications 32:456–458Google Scholar
  10. 10.
    Bock J, Siano DB, Valint PL, Pace SJ (1987) Polym Mat Sci Eng 57:487–491Google Scholar
  11. 11.
    Picton L, Merle L, Muller G (1996) J of Polym Charact and Analysis 2:103–113CrossRefGoogle Scholar
  12. 12.
    Sau AC (1987) Polym Mat Sci Eng 57:497–501Google Scholar
  13. 13.
    Goodwin JW, Hugues RW, Lam CK, Miles JA, Warren BCH (1989) In: Glass JE Ed., “Polymer in Aqueous Media: performance through association” Adv in Chem, Series 223 pp 365–378, Am Chem Soc, Washington DCGoogle Scholar
  14. 14.
    Tanaka R, Meadows J, Williams PA, Phillips GO (1992) Macromol 25:1304–1310CrossRefGoogle Scholar
  15. 15.
    Varelas CG, Steiner CA (1990) In: “Absorbent Polymer Technology”, pp 259–273, Elsevier Ed., AmsterdamGoogle Scholar
  16. 16.
    Sivadasan K, Somasundaran P (1990) Colloids and Surfaces 49:229–239CrossRefGoogle Scholar
  17. 17.
    Franks F (1975) In: Franks F ed., “Water: a comprehensive treatise” Vol 4, p 1, Plenum: New YorkGoogle Scholar
  18. 18.
    Leung PS, Goddard ED (1991) Langmuir 7:608–609CrossRefGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1996

Authors and Affiliations

  • L. Picton
    • 1
  • G. Muller
    • 1
  1. 1.URA 500 CNRS “Polymères, Biopolymères et Membranes”Université de RouenMont Saint Aignan CedexFrance

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