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Updated: Jul 28, 2025

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Orthogonal Supramolecular Assemblies Using Side-Chain Functionalized Helical Poly(isocyanide)s
Chengyuan Wang1, Ru Deng1, Marcus Weck1
1Department of Chemistry and Molecular Design Institute, New York University, New York, New York 10003, United States.
Synthetic polymers were modified with side-chains to mimic protein structures using reversible hydrogen bonding and metal coordination. The helical polymer backbone structure was maintained during assembly and disassembly for smart material applications.
Area of Science:
- Polymer Chemistry
- Supramolecular Chemistry
- Materials Science
Background:
- Mimicking protein structures with synthetic polymers is challenging.
- Requires building blocks with structural similarity and dynamic interactions.
- Helical polymers offer a promising scaffold for advanced materials.
Purpose of the Study:
- To synthesize helical poly(isocyanide)s with functional side-chains.
- To achieve multistep functionalization using orthogonal interactions.
- To demonstrate the reversibility of these interactions and the stability of the helical structure.
Main Methods:
- Synthesis of helical poly(isocyanide)s with diaminopyridine and pyridine side-chains.
- Multistep functionalization via hydrogen bonding and metal coordination.
- Circular dichroism spectroscopy to confirm helical conformation and reversibility.
Main Results:
- Successfully synthesized functionalized helical poly(isocyanide)s.
- Demonstrated orthogonal and reversible hydrogen bonding and metal coordination.
- Confirmed sustained helical conformation throughout assembly and disassembly processes.
Conclusions:
- Developed a method for creating functional helical polymer scaffolds.
- Showcased the potential for reversible side-chain modifications.
- Opened possibilities for designing complex polymer architectures for smart materials.
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