Thermally reversible self-healing polysilsesquioxane structure-property relationships based on Diels-Alder chemistry

Young Yeol Jo, Albert S. Lee, Kyung Youl Baek, Heon Lee, Seung Sang Hwang

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

An in-depth examination of the self-healing properties of both dienophile and diene functionalized ladder-like structured polysilsesquioxane copolymers and terpolymers was investigated. Through functionalization of both diene and dienophile on the double-stranded siloxane backbone with ternary n-alkyl functional groups acting as chain mobility control, the effect of chain mobility and chemical structure on self-healing and mechanical properties were elucidated. All of the single component self-healing hybrid materials exhibited fast healing times (∼5 min), and their de-crosslinked adducts exhibited exceptional retention of solubility in common organic solvents for good reusability, all while having inherent high thermal stability and optical transparency.

Original languageEnglish
Pages (from-to)58-65
Number of pages8
JournalPolymer
Volume108
DOIs
Publication statusPublished - 2017 Jan 13

Bibliographical note

Funding Information:
This work was financially supported by a grant from the Fundamental R&D Program for Core Technology of Materials, and Industrial Strategic Technology Development Program funded by the Ministry of Knowledge Economy, Republic of Korea . Partial funding was given by the Materials Architecturing Research Center of Korea Institute of Science and Technology (KIST) and the Korea Research Fellowship Program funded by the Ministry of Science , ICT , and Future Planning through the National Research Foundation of Korea .

Publisher Copyright:
© 2016 Elsevier Ltd

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

Keywords

  • Diels-Alder chemistry
  • Self-healing polymers
  • Silsesquioxane

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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