Jump to main content
Jump to site search

Issue 59, 2017, Issue in Progress
Previous Article Next Article

Influence of molecular interplay on the HPAM/UR rheological properties in an aqueous solution

Author affiliations

Abstract

Herein, the interaction between partially hydrolyzed polyacrylamide (HPAM) and urea (UR) in an aqueous solution was characterized via differential scanning calorimetry (DSC) and two-dimension correlation spectra (2DCOS). The rheological properties of the HPAM solution (2000 and 2500 mg L−1) were studied as a function of the addition of the UR content (50, 100, 200, 300, and 400 mg L−1). The results indicate that the HPAM/UR solution exhibits higher intrinsic viscosity, apparent viscosity, first normal stress difference, and modulus than the HPAM solution due to the larger hydraulic size of HPAM in the aqueous solution. From the DSC and 2DCOS results, a stronger hydrogen bonding interaction between carbonyl and amino groups was observed in the vicinity of 45 °C. Dynamic light scattering (DLS) was employed to directly analyze the hydrodynamic diameter, and it further confirmed that a certain amount of UR enabled the blending solution to increase the hydraulic size. Moreover, an interplay model was put forward based on the rheology and dynamic light scattering data.

Graphical abstract: Influence of molecular interplay on the HPAM/UR rheological properties in an aqueous solution

Back to tab navigation

Publication details

The article was received on 09 May 2017, accepted on 28 Jun 2017 and first published on 26 Jul 2017


Article type: Paper
DOI: 10.1039/C7RA05263D
Citation: RSC Adv., 2017,7, 37055-37064
  • Open access: Creative Commons BY license
  •   Request permissions

    Influence of molecular interplay on the HPAM/UR rheological properties in an aqueous solution

    S. Cai, H. Zhao, T. Li, X. He, X. Wang, Alisson M. Rodrigues and R. Zhang, RSC Adv., 2017, 7, 37055
    DOI: 10.1039/C7RA05263D

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements