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Stimuli-Responsive Gels from Reversible Coordination Polymers


  • This work was supported by the Creative Research Initiative Program of the Ministry of Science and Technology, Korea and Pohang Accelerator Laboratory, Korea (synchrotron radiation). H.-J.K. thanks the Seoul Science Fellowship Program.


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Sol–gel switching is triggered by counteranion guest exchange. The secondary structures of reversible coordination polymers can interconvert from a folded helical conformation (gel) into an unfolded zigzag conformation (sol) and back again in aqueous media (see picture).