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Optical Control of Living Cells Electrical Activity by Conjugated Polymers

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Bioinspired Multi-Function Conversion Based on Recyclable Phase Change Polymers.

Hui Xu¹, Ran Yan², Jun Zhao¹

¹Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, 220 Handan Rd., Shanghai, 200433, China.

Small (Weinheim an Der Bergstrasse, Germany)

|July 11, 2025

Summary

This summary is machine-generated.

Researchers developed new phase change polymers with dynamic covalent bonds and crystalline side chains. These adaptable materials can be efficiently synthesized and recycled, enabling diverse functionalities for advanced applications.

Keywords:

function conversion recyclable polymer thioctic acid ester

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Area of Science:

Materials Science
Polymer Chemistry
Sustainable Chemistry

Background:

Biological systems efficiently use limited building blocks for diverse functions via assembly/disassembly.
Synthetic materials struggle to balance multifunctionality, recyclability, and adaptable performance.
Dynamic covalent bonds and crystalline structures offer pathways to advanced material properties.

Purpose of the Study:

To design and synthesize phase change polymers with dynamic covalent bonds and crystalline side chains.
To achieve efficient polymerization and depolymerization for material transformation.
To enable tunable material properties for diverse applications.

Main Methods:

Synthesized a model poly(lipoic acid) backbone with grafted alkyl side chains via esterification.
Incorporated dynamic disulfide bonds in the polymer backbone for controlled degradation.
Investigated temperature-induced changes in polymer crystallinity and mechanical/optical properties.

Main Results:

Demonstrated reversible changes in modulus, adhesion, and optical properties with temperature.
Achieved efficient depolymerization back to monomers under mild acidic conditions.
Successfully utilized the polymers for applications like electronic skin and shape-memory materials.

Conclusions:

Phase change polymers with dynamic covalent and crystalline features offer a new paradigm for material design.
Efficient synthesis and depolymerization enable sustainable and economical multifunctional materials.
The developed materials allow for functional transformations, paving the way for adaptable material solutions.