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Journal of Polymer Research

, 22:221 | Cite as

Mechanical behavior of a terpolymer-based pH- and temperature-responsive hydrogel

  • Li Gao
  • Youyi Sun
  • Wenhui Zhang
  • Diansen Li
  • Chunlin Hou
  • Yaqing Liu
Original Paper

Abstract

To improve the mechanical properties of responsive polymer hydrogels, a novel polymer nanocomposite hydrogel (“polymer NC gel”) consisting of a terpolymer of acrylamide (AM), acrylic acid (AA), and 2-acrylamidomethylpropane sulfonic acid (AMPS) combined with a clay was fabricated by radical polymerization. The structural, swelling, and mechanical properties of the polymer NC gel were easily controlled by varying the initiator (ammonium persulfate) loading. The polymer NC gel presented its highest swelling capacity (395.1 g/g), tensile strength (39.7 kPa), and compressive strength (6.4 MPa) when an initiator loading of 2.0 wt% was applied. Furthermore, the effects of pH and temperature on the swelling and mechanical properties of the polymer NC gel were also investigated. The swelling and mechanical properties of the polymer NC gel were found to be strongly dependent on the pH and the temperature. These important results should facilitate further improvements in the mechanical and stimuli-responsive properties of polymer NC gels.

Keywords

pH and temperature sensitivity Polymer nanocomposite hydrogel Mechanical properties Swelling properties 

Notes

Acknowledgments

The authors are grateful for the support of the National Natural Science Foundation of China under grants 11202006 and 11202007, and the Shanxi Provincial Natural Science Foundation of China (2014021018-6).

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Research Center for Engineering Technology of Polymeric Composites of Shanxi ProvinceNorth University of ChinaTaiyuanPeople’s Republic of China
  2. 2.Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry and EnvironmentBeijing University of Aeronautics and AstronauticsBeijingPeople’s Republic of China

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