Polymer Bulletin

, Volume 67, Issue 2, pp 251–262

Rheological properties of three different microstructures of water-soluble polymers prepared by solution polymerization

  • Valeria J. González Coronel
  • Enrique J. Jiménez-Regalado
Original paper

DOI: 10.1007/s00289-010-0377-8

Cite this article as:
González Coronel, V.J. & Jiménez-Regalado, E.J. Polym. Bull. (2011) 67: 251. doi:10.1007/s00289-010-0377-8

Abstract

Polymer chains consisting of water-soluble polyacrylamides hydrophobically modified with low amount of hydrophobic groups, with varying hydrophobic chain structure (C16 and Cdi8) and with varying localization of the hydrophobe along the chain (telechelic, multisticker, and combined polymers) were investigated. The viscoelastic behavior of these associative polymers has been studied in semidilute solutions using steady-flow and oscillatory experiments. The effect of type and localization of the hydrophobic groups on the viscosity of the associative polymer solution was investigated. It can be inferred that the high viscosity presented by these polymers, is due largely to G0, which represents the number of associations in the medium at any given time and less so on TR, which represents the duration time of any given association. On all studied samples, TR as well as G0, were affected by the type (di-substituted or linear) and localization of the hydrophobic groups (telechelic, multisticker, or combined).

Keywords

Telechelic polymerCombined polymerRheologyRelaxation time

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Valeria J. González Coronel
    • 1
  • Enrique J. Jiménez-Regalado
    • 1
  1. 1.Centro de Investigación en Química Aplicada (CIQA)SaltilloMéxico