Hydrogels with a Memory: Dual-Responsive, Organometallic Poly(ionic liquid)s with Hysteretic Volume-Phase Transition

@article{Zhang2017HydrogelsWA,
  title={Hydrogels with a Memory: Dual-Responsive, Organometallic Poly(ionic liquid)s with Hysteretic Volume-Phase Transition},
  author={Kaihuan Zhang and Xueling Feng and Chongnan Ye and Mark A. Hempenius and G. Julius Vancso},
  journal={Journal of the American Chemical Society},
  year={2017},
  volume={139},
  pages={10029 - 10035}
}
We report on the synthesis and structure–property relations of a novel, dual-responsive organometallic poly(ionic liquid) (PIL), consisting of a poly(ferrocenylsilane) backbone of alternating redox-active, silane-bridged ferrocene units and tetraalkylphosphonium sulfonate moieties in the side groups. This PIL is redox responsive due to the presence of ferrocene in the backbone and also exhibits a lower critical solution temperature (LCST)-type thermal responsive behavior. The LCST phase… 

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