Skip to main content

Progress toward robust polymer hydrogels

Journal Article


Abstract


  • In this review we highlight new developments in tough hydrogel materials in terms of their enhanced mechanical performance and their corresponding toughening mechanisms. These mechanically robust hydrogels have been developed over the past 10 years with many now showing mechanical properties comparable with those of natural tissues. By first reviewing the brittleness of conventional synthetic hydrogels, we introduce each new class of tough hydrogel: homogeneous gels, slip-link gels, double-network gels, nanocomposite gels and gels formed using poly-functional crosslinkers. In each case we provide a description of the fracture process that may be occurring. With the exception of double network gels where the enhanced toughness is quite well understood, these descriptions remain to be confirmed. We also introduce material property charts for conventional and tough synthetic hydrogels to illustrate the wide range of mechanical and swelling properties exhibited by these materials and to highlight links between these properties and the network topology. Finally, we provide some suggestions for further work particularly with regard to some unanswered questions and possible avenues for further enhancement of gel toughness. ?? 2011 CSIRO.

UOW Authors


  •   Naficy, Sina (external author)
  •   Brown, Hugh (external author)
  •   Razal, Joselito M. (external author)
  •   Spinks, Geoff M.
  •   Whitten, Philip G. (external author)

Publication Date


  • 2011

Citation


  • Naficy, S., Brown, H. Ralph., Razal, J. M., Spinks, G. Maxwell. & Whitten, P. G. (2011). Progress toward robust polymer hydrogels. Australian Journal of Chemistry: an international journal for chemical science, 64 (8), 1007-1025.

Scopus Eid


  • 2-s2.0-80051960829

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3394

Number Of Pages


  • 18

Start Page


  • 1007

End Page


  • 1025

Volume


  • 64

Issue


  • 8

Abstract


  • In this review we highlight new developments in tough hydrogel materials in terms of their enhanced mechanical performance and their corresponding toughening mechanisms. These mechanically robust hydrogels have been developed over the past 10 years with many now showing mechanical properties comparable with those of natural tissues. By first reviewing the brittleness of conventional synthetic hydrogels, we introduce each new class of tough hydrogel: homogeneous gels, slip-link gels, double-network gels, nanocomposite gels and gels formed using poly-functional crosslinkers. In each case we provide a description of the fracture process that may be occurring. With the exception of double network gels where the enhanced toughness is quite well understood, these descriptions remain to be confirmed. We also introduce material property charts for conventional and tough synthetic hydrogels to illustrate the wide range of mechanical and swelling properties exhibited by these materials and to highlight links between these properties and the network topology. Finally, we provide some suggestions for further work particularly with regard to some unanswered questions and possible avenues for further enhancement of gel toughness. ?? 2011 CSIRO.

UOW Authors


  •   Naficy, Sina (external author)
  •   Brown, Hugh (external author)
  •   Razal, Joselito M. (external author)
  •   Spinks, Geoff M.
  •   Whitten, Philip G. (external author)

Publication Date


  • 2011

Citation


  • Naficy, S., Brown, H. Ralph., Razal, J. M., Spinks, G. Maxwell. & Whitten, P. G. (2011). Progress toward robust polymer hydrogels. Australian Journal of Chemistry: an international journal for chemical science, 64 (8), 1007-1025.

Scopus Eid


  • 2-s2.0-80051960829

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3394

Number Of Pages


  • 18

Start Page


  • 1007

End Page


  • 1025

Volume


  • 64

Issue


  • 8