Journal
POLYMERS
Volume 11, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/polym11050773
Keywords
dynamic structures; diselenide; self-healing
Categories
Funding
- National Key Research and Development Program of China [2016YFB0302603]
- Joint Research Project of Jiangsu Province [BY2016051-01]
- Educational Commission of Jiangsu Province of China [17KJA150008]
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions
- Program of Innovative Research Team of Innovative Research Team of Soochow University
Ask authors/readers for more resources
Dynamic structures containing polymers can behave as thermosets at room temperature while maintaining good mechanical properties, showing good reprocessability, repairability, and recyclability. In this work, alkyl diselenide is effectively used as a dynamic cross-linker for the design of self-healing poly(urea-urethane) elastomers, which show quantitative healing efficiency at room temperature, without the need for any catalysts or external interventions. Due to the combined action of the urea bond and amide bond, the material has better mechanical properties. We also compared the self-healing effect of alkyl diselenide-based polyurethanes and alkyl disulfide-based polyurethanes. The alkyl diselenide has been incorporated into polyurethane networks using a para-substituted amine diphenyl alkyl diselenide. The resulting materials not only exhibit faster self-healing properties than the corresponding disulfide-based materials, but also show the ability to be processed at temperatures as low as 60 degrees C.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available