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Stimuli-responsive synthetic helical polymers.

María Lago-Silva1, Manuel Fernández-Míguez1, Rafael Rodríguez1

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Summary
This summary is machine-generated.

Dynamic helical polymers and foldamers respond to stimuli like temperature, pH, and light. These external factors trigger changes in their helical structures, leading to diverse conformational and scaffold alterations.

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Area of Science:

  • Polymer Chemistry
  • Supramolecular Chemistry
  • Organic Chemistry

Background:

  • Synthetic dynamic helical polymers (covalent and supramolecular) and foldamers utilize a helical structural motif.
  • These systems exhibit shared properties like helix induction and conformational communication.

Purpose of the Study:

  • To review how various stimuli influence the helical structures of dynamic helical polymers and foldamers.
  • To highlight the transmission of stimulus-induced changes from molecular components to the macromolecular helical structure.

Main Methods:

  • Review of selected examples demonstrating stimulus-responsive behavior.
  • Analysis of how different stimuli affect conformational composition and molecular structure.

Main Results:

  • Stimuli such as temperature, solvents, ions, redox agents, chiral additives, pH, and light can alter helical structures.
  • Changes include asymmetry amplification, helix inversion, and modifications to the helical scaffold (e.g., elongation, J/H helical aggregates).

Conclusions:

  • Stimuli-responsive building blocks are key to controlling dynamic helical polymer and foldamer structures.
  • Understanding these stimulus-response mechanisms is crucial for designing advanced helical materials.