Abstract：The main methods of preparing self-healing materials were introduced briefly. Then the mechanism and preparation methods of self-healing polymer prepared by Diels-Alder reaction, acylhydrazone bond and disulfide bond, and the latest research progress were discussed. Diels-Alder reaction and retro-Diels-Alder reaction could occur in the self-healing materials prepared by Diels-Alder reaction when the temperature changed, so as to realize the self-healing of materials. Using the reversible of acylhydrazone bond under the acid catalysis condition, the self-healing materials with pH response were prepared. Besides, the disulfide bond exhibited the self-healing property at room temperature. However, the self-healing polymers prepared by reversible covalent bond had the same drawbacks with other types of self-healing polymers: material softer, low hardness and mechanical strength. Preparing the self-healing materials with practical application value would be the main tasks in the future.
Wei Yanyan,Du Xiucai,Bai Yapeng et al. Research Progress in Self-Healing Polymers Based on Reversible Covalent Bonds[J]. 化学反应工程与工艺, 2015, 31(6): 530-537.
