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.
Bibliographical noteFunding 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 .
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- Diels-Alder chemistry
- Self-healing polymers
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry