What is it about?
This work studies the correlations between the molecular structure, thermal conductivity and other physical properties of polymer. By molecular engineering, liquid crystalline long-range order is found to be important for the heat transport in polymer.
Featured Image
Photo by Terry Vlisidis on Unsplash
Why is it important?
Molecular engineering is important to design the molecular structure of polymers to meet their various applications in industry and study the correlations between the molecular structure and other physical properties. By controlling precise ethylene linker length in the molecular structure of epoxy resin, we find a giant odd-even effect of ethylene linker length on liquid crystal formation, mass density, longitudinal elastic constant, and thermal conductivity. The thermal conductivity of liquid crystalline epoxy resin in this work reaches 1.0 W/(m K), which is 5 times of common polymer.
Perspectives
We prove the importance of liquid crystalline structure on the thermal conductivity of polymer by molecular engineering. The molecular engineering method of controlling precise ethylene linker length in polymer structure is also useful to study other fundamental structure-property relationships of functional polymers.
Guangxin Lv
University of Illinois System
Read the Original
This page is a summary of: Odd–even effect on the thermal conductivity of liquid crystalline epoxy resins, Proceedings of the National Academy of Sciences, November 2022, Proceedings of the National Academy of Sciences,
DOI: 10.1073/pnas.2211151119.
You can read the full text:
Contributors
The following have contributed to this page
