Tough and Multi-responsive Hydrogels Based on Core-Shell Structured Macro-crosslinkers
Papers|Updated:2021-02-18
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Tough and Multi-responsive Hydrogels Based on Core-Shell Structured Macro-crosslinkers
Tough and Multi-responsive Hydrogels Based on Core-Shell Structured Macro-crosslinkers
Chinese Journal of Polymer Science2017年35卷第10期 页码:1286-1296
Affiliations:
a.Polymers and Composites Division & Cixi Institute of Biomedical Engineering, Ningbo Institution of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
b.School of Chemical Engineering, Ningbo University of Technology, Ningbo 315201, China
Author bio:
Jun Fu (付俊), E-mail:fujun@nimte.ac.cn
Funds:
the National Natural Science Foundation of China(21574145);Zhejiang Natural Science Foundation of China(LY17E030011);the Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University);Supplementary material is available in the online version of this article at http://dx.doi.org/10.1007/s10118-017-1979-5.
Gao-lai Du, Yang Cong, Long Chen, 等. Tough and Multi-responsive Hydrogels Based on Core-Shell Structured Macro-crosslinkers[J]. Chinese Journal of Polymer Science, 2017,35(10):1286-1296.
Gao-lai Du, Yang Cong, Long Chen, et al. Tough and Multi-responsive Hydrogels Based on Core-Shell Structured Macro-crosslinkers[J]. Chinese Journal of Polymer Science, 2017, 35(10): 1286-1296.
Gao-lai Du, Yang Cong, Long Chen, 等. Tough and Multi-responsive Hydrogels Based on Core-Shell Structured Macro-crosslinkers[J]. Chinese Journal of Polymer Science, 2017,35(10):1286-1296.DOI: 10.1007/s10118-017-1979-5.
Gao-lai Du, Yang Cong, Long Chen, et al. Tough and Multi-responsive Hydrogels Based on Core-Shell Structured Macro-crosslinkers[J]. Chinese Journal of Polymer Science, 2017, 35(10): 1286-1296.DOI: 10.1007/s10118-017-1979-5.
Tough and Multi-responsive Hydrogels Based on Core-Shell Structured Macro-crosslinkers
Novel hydrogels based on core-shell structured macro-crosslinkers were synthesized
which exhibited high toughness and multiple responsiveness. Sodium dodecyl sulfate (SDS) micelles mediated by NaCl were used to encapsulate hydrophobic stearyl methacrylate (C18) in the core
and hydrophilic 2-acrylamido-2-methyl-1-propanesulfonic (AMPS) monomers in the corona. Such core-shell micelles were simultaneously copolymerized with acrylamide monomers through free radical polymerization. As a result
hydrogels crosslinked by amphiphilic "poly(C18)-PAMPS" macro-crosslinkers were obtained. These hydrogels showed excellent tensile and compression strength and toughness. Cyclic compression loading-unloading tests demonstrated that the hydrogels were of outstanding fatigue resistance
and showed partial damage of energy dissipation mechanism. The damaged energy dissipation mechanism could be recovered at room temperature and the recovery could be accelerated at elevated temperatures. The hydrogels were sensitive to the change in pH and ion strength
showing reversible swelling/deswelling behaviors.
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