Journal
JOURNAL OF MATERIALS SCIENCE
Volume 54, Issue 13, Pages 9983-9994Publisher
SPRINGER
DOI: 10.1007/s10853-019-03547-z
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Funding
- National Natural Science Foundation of China [21304075]
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics (Beijing Technology and Business University) [SS201707]
- China Scholarship Council [201706970002]
- Top-rated Discipline'' construction scheme of Shaanxi higher education
- Beijing National Laboratory for Molecular Science
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A self-healing hydrogel was synthesized via the multi-component reaction of azobenzene-methacrylamide, -CD and 3-methacrylamido phenylboronic acid. The orthogonal method was applied to analyze the influence of host-guest inclusion complexation, cross-linker and phenylboronic acid monomers content on mechanical properties and healing efficiency of the hydrogel. The results indicated that hydrogel showed autonomic self-healing behavior. The hydrogel demonstrated light-switchable self-healing ability and pH-sensitive swelling ratio. It was found that hydrogel showed high elongation, excellent resilience and low elastic hysteresis. The design of the combined host-guest interactions and boronate esters on the hydrogel showed advantage for improving the mechanical, self-healing and recovery properties simultaneously.
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