A Charge-Transfer-Induced Self-Healing Supramolecular Hydrogel.
In this study, a dual-component charge-transfer (CT)-induced supramolecular hydrogel was fabricated using pyrene-tailored pyridinium (PYP) and 2,4,7-trinitrofluorenone (TNF) as the electron donor and acceptor, respectively. Its thermal stability and mechanical property have been modulated effectively by altering the concentration or molar ratio of PYP and TNF. Moreover, this CT hydrogel exhibited a distinct injectable self-healing property that could be utilized to create desired patterns on substrates. Such property holds potential for this CT hydrogel in fields like three-dimensional printing and surface coating.
State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering, Centre for R&D of Fine Chemicals, Guizhou University, Guiyang, 550025, China.|State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
Lei
L
Gao
Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education Institute of Applied Chemistry, Tsinghua University, Beijing, 100084, China.
Yuxia
Y
Gao
State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
Yuan
Y
Lin
Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education Institute of Applied Chemistry, Tsinghua University, Beijing, 100084, China.
Yong
Y
Ju
State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering, Centre for R&D of Fine Chemicals, Guizhou University, Guiyang, 550025, China.
Song
S
Yang
State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
Jun
J
Hu
charge transfer; donor-acceptor systems; fused ring systems; gels; supramolecular chemistry