Tracer microrheology study of a hydrophobically modified comblike associative polymer

Langmuir : the ACS Journal of Surfaces and Colloids
Ahmed A AbdalaSaad A Khan

Abstract

The viscoelastic properties of associative polymers are important not only for their use as rheology modifiers but also to understand their complex structure in aqueous media. In this study, the dynamics of comblike hydrophobically modified alkali swellable associative (HASE) polymers are probed using diffusing wave spectroscopy (DWS) based tracer microrheology. DWS-based tracer microrheology accurately probes the dynamics of HASE polymers, and the extracted microrheological moduli versus frequency profile obtained from this technique closely matches that obtained from rotational rheometry measurements. Quantitatively, however, the moduli extracted from DWS-based tracer microrheology measurements are slightly higher than those obtained using rotational rheometry. The creep compliance, elastic modulus, and relaxation time concentration scaling behavior exhibits a power-law dependence. The length scale associated with the elastic to glassy behavior change is obtained from the time-dependent diffusion coefficient. The Zimm-Rouse type scaling is recovered at high frequencies but shows a concentration effect switching from Zimm to more Rouse-like behavior at higher concentrations.

References

Jan 23, 1999·Biophysical Journal·A PalmerD Wirtz
Jun 1, 1994·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·J C Earnshaw, A H Jaafar
Mar 21, 1988·Physical Review Letters·D J PineE Herbolzheimer
Feb 13, 1995·Physical Review Letters·T G Mason, D A Weitz
Sep 6, 2000·Physical Review Letters·A J Levine, T C Lubensky
Nov 23, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics· van Zanten JH, K P Rufener
Apr 20, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·A J Levine, T C Lubensky
Jun 1, 2001·Physical Review Letters·S Cohen-Addad, R Höhler
Jan 22, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Alex J Levine, T C Lubensky
Jan 22, 2002·Physical Review Letters·Loïc Le GoffEric M Furst
Jun 13, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·L F Rojas-OchoaP Schurtenberger
Jun 13, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Bivash R DasguptaD A Weitz
Jan 7, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Qiang Lu, Michael J Solomon
May 7, 2009·Annual Review of Biophysics·Denis Wirtz
Oct 13, 2009·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Tamás HarasztiJoachim P Spatz
Jan 30, 2010·Seminars in Perinatology·Donna A GoffDaniel J Licht
Feb 23, 2010·The European Physical Journal. E, Soft Matter·J R de Bruyn, F K Oppong
Jan 5, 2011·The Review of Scientific Instruments·Ian D Block, Frank Scheffold
Jul 14, 2012·Reports on Progress in Physics·Gary L Hunter, Eric R Weeks
Jan 16, 2014·The Journal of Physical Chemistry. B·Erick Sarmiento-GomezRolando Castillo

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Citations

Jan 27, 2017·Annual Review of Food Science and Technology·Nan YangYapeng Fang

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