TY - JOUR
T1 - Orthogonal photochemistry-assisted printing of 3D tough and stretchable conductive hydrogels
AU - Wei, Hongqiu
AU - Lei, Ming
AU - Zhang, Ping
AU - Leng, Jinsong
AU - Zheng, Zijian
AU - Yu, You
N1 - Funding Information:
The authors acknowledge the China Postdoctoral Science Foundation (2020M673629XB, 2020M683533), National Natural Science Foundation of China (21604069), Nature Science Foundation of Shaanxi Province (2019JM-094, 2020JQ-598), and Key Lab Syn-thet & Nat. Funct. Mol. (KLSNFM2020002) for the financial support of this work. The authors also thank Prof. Peng Li (Northwestern Polytechnical University, China) and Prof. Baolin Guo (Xi’an Jiaotong University, China) for the dynamic mechanical analysis and differential scanning calorimetry measurement.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/4/7
Y1 - 2021/4/7
N2 - 3D-printing tough conductive hydrogels (TCHs) with complex structures is still a challenging task in related fields due to their inherent contrasting multinetworks, uncontrollable and slow polymerization of conductive components. Here we report an orthogonal photochemistry-assisted printing (OPAP) strategy to make 3D TCHs in one-pot via the combination of rational visible-light-chemistry design and reliable extrusion printing technique. This orthogonal chemistry is rapid, controllable, and simultaneously achieve the photopolymerization of EDOT and phenol-coupling reaction, leading to the construction of tough hydrogels in a short time (tgel ~30 s). As-prepared TCHs are tough, conductive, stretchable, and anti-freezing. This template-free 3D printing can process TCHs to arbitrary structures during the fabrication process. To further demonstrate the merits of this simple OPAP strategy and TCHs, 3D-printed TCHs hydrogel arrays and helical lines, as proofs-of-concept, are made to assemble high-performance pressure sensors and a temperature-responsive actuator. It is anticipated that this one-pot rapid, controllable OPAP strategy opens new horizons to tough hydrogels.
AB - 3D-printing tough conductive hydrogels (TCHs) with complex structures is still a challenging task in related fields due to their inherent contrasting multinetworks, uncontrollable and slow polymerization of conductive components. Here we report an orthogonal photochemistry-assisted printing (OPAP) strategy to make 3D TCHs in one-pot via the combination of rational visible-light-chemistry design and reliable extrusion printing technique. This orthogonal chemistry is rapid, controllable, and simultaneously achieve the photopolymerization of EDOT and phenol-coupling reaction, leading to the construction of tough hydrogels in a short time (tgel ~30 s). As-prepared TCHs are tough, conductive, stretchable, and anti-freezing. This template-free 3D printing can process TCHs to arbitrary structures during the fabrication process. To further demonstrate the merits of this simple OPAP strategy and TCHs, 3D-printed TCHs hydrogel arrays and helical lines, as proofs-of-concept, are made to assemble high-performance pressure sensors and a temperature-responsive actuator. It is anticipated that this one-pot rapid, controllable OPAP strategy opens new horizons to tough hydrogels.
UR - http://www.scopus.com/inward/record.url?scp=85103997904&partnerID=8YFLogxK
U2 - 10.1038/s41467-021-21869-y
DO - 10.1038/s41467-021-21869-y
M3 - Journal article
C2 - 33828100
AN - SCOPUS:85103997904
SN - 2041-1723
VL - 12
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 2082
ER -