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A Degradable and Recyclable Photothermal Conversion Polymer.

Xiao-Qi Xu1, Zhen Wang1, Ruiting Li1

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Chemistry (Weinheim an Der Bergstrasse, Germany)
|May 15, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed a recyclable conjugated polymer with a Schiff base dynamic covalent bond, achieving 90.4% photothermal conversion efficiency. This material can be decomposed and repolymerized, maintaining its efficiency for applications like photothermal-electrical conversion.

Keywords:
conjugated polymermaterials chemistryphotothermal conversionpolymersrepolymerization

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Photothermal Conversion

Background:

  • Developing recyclable photothermal conversion materials from conjugated polymers is challenging.
  • Dynamic covalent bonds offer potential for material degradation and regeneration.

Purpose of the Study:

  • To develop a crosslinked conjugated polymer utilizing Schiff base dynamic covalent bonds for enhanced recyclability.
  • To evaluate the photothermal conversion efficiency and recyclability of the developed polymer.
  • To demonstrate the application of the recyclable polymer in photothermal-electrical conversion.

Main Methods:

  • Synthesis of a crosslinked conjugated polymer featuring Schiff base dynamic covalent bonds.
  • Characterization of the polymer's structure and properties.
  • Photothermal conversion efficiency measurements.
  • Kinetics study of polymer decomposition.
  • Repolymerization experiments.
  • Photothermal-electrical conversion using the polymer as a heat source.

Main Results:

  • The developed polymer exhibits a high photothermal conversion efficiency of 90.4%.
  • The polymer can be effectively decomposed under specific conditions and subsequently repolymerized.
  • The repolymerized polymer retains the same high photothermal conversion efficiency as the original material.
  • The material successfully generated Seebeck voltage for photothermal-electrical conversion under NIR irradiation and solar illumination.

Conclusions:

  • A novel, recyclable conjugated polymer based on Schiff base dynamic covalent bonds has been successfully synthesized.
  • The polymer demonstrates excellent photothermal conversion efficiency and recyclability, addressing a key challenge in the field.
  • This degradable and repolymerizable material shows promise for sustainable energy applications, particularly in photothermal-electrical conversion.