Journal
POLYMERS
Volume 10, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/polym10121392
Keywords
cellulose; disulfide; gel; self-healing
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Funding
- National Natural Science Foundation of China [31470598, 21774021]
- Award Program for Minjiang Scholar Professorship
- International Science and Technology Cooperation and Exchange Project of Fujian Agriculture and Forestry University [KXb16002A]
- Scientific and technological innovation funding of Fujian Agriculture and Forestry University [CXZX2017040, KF2015002]
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Self-healing gels based on reshuffling disulfide bonds have attracted great attention due to their ability to restore structure and mechanical properties after damage. In this work, self-healing gels with different cellulose nanocrystals (CNC) contents were prepared by embedding the thiuram disulfide bonds into gels via polyaddition. By the reshuffling of thiuram disulfide bonds, the CNC-containing gels repair the crack and recover mechanical properties rapidly under visible light in air. The thiuram disulfide-functionalized gels with a CNC content of 2.2% are highly stretchable and can be stretched approximately 42.6 times of their original length. Our results provide useful approaches for the preparation of dynamic CNC-containing gels with implications in many related engineering applications.
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