Facile Preparation and Properties of Ionic-Bonded Hydrophobically Associating Anionic Sesbania Gum

  • Chen WangEmail author
  • Yan Xin
  • Liewei Qiu
  • Xiaowu Yang
Original Paper


We prepared a novel ionic-bonded hydrophobically associating anionic sesbania gum (IHASG) via a simple blending method. The effects of different variables on the viscosity and non-Newtonian behavior of this system were investigated. Upon increasing the degree of substitution, the apparent viscosity increased, and a stronger non-Newtonian viscosity was observed compared to that of standard anionic sesbania gum. The apparent viscosity was enhanced upon increasing the IHASG concentration, and small quantity of NaCl enhanced the solution polarity, leading to stronger intermolecular associations. The maximum viscosity appeared at pH 6–7, while increased temperatures enhanced the hydrophobic association effects and improved the heat resistance of the IHASG solutions. The viscosity of cross-linked IHASG increased upon increasing the B(OH)3 content and well-ordered multi-layered structures were formed. IHASG therefore exhibited superior associating properties like normal hydrophobically associating polysaccharides, and so exhibit potential for various applications due to the simple blending method employed.


Sesbania gum Hydrophobically associating Ionic bonding Viscosity Non-Newtonian behavior 



Anionic sesbania gum


Critical associating concentration


Degree of substitution


Hydrophobically associating polymer or polysaccharide


Cross-linked IHASG


Ionic bonded novel hydrophobically associating anionic sesbania gum


Lauryl trimethyl ammonium chloride


Scanning electron microscopy


Sesbania gum



We would like to acknowledge financial support from the Natural Science Foundation of China (Grant No. 5160030644), the Scientific Research Fund of Shaanxi University of Science and Technology (Grant No.2016QNBJ-15), the Innovative Talents Promotion Plan in Shaanxi Province (Grant No. 2018KJXX-023), and the Scientific Research Fund of Shaanxi Provincial Education Department (Grant No. 17JK0101).


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of EducationShaanxi University of Science & TechnologyXi’anPeople’s Republic of China

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