Ionically crosslinked chitosan/poly(acrylic acid) hydrogels with high strength, toughness and antifreezing capability

被引:57
作者
Cao, Jinfeng [1 ]
Wang, Yang [1 ]
He, Chen [1 ]
Kang, Yanhui [1 ]
Zhou, Jinping [1 ]
机构
[1] Wuhan Univ, Dept Chem, Minist Educ,Sauvage Ctr Mol Sci, Hubei Engn Ctr Nat Polymers Based Med Mat,Key Lab, Wuhan 430072, Peoples R China
基金
中国国家自然科学基金;
关键词
Hydrogel; Chitosan; Electrostatic interactions; Ultrahigh strength; Antifreezing; DOUBLE-NETWORK HYDROGELS; NANOCOMPOSITE HYDROGELS; MECHANICAL-PROPERTIES; DIPOLE-DIPOLE; STRATEGY; CHITOSAN;
D O I
10.1016/j.carbpol.2020.116420
中图分类号
O69 [应用化学];
学科分类号
070301 [无机化学];
摘要
A dual physically crosslinking (DPC) strategy is used to construct hydrogels with ultrahigh strength. First, polyelectrolyte complex (PEC) hydrogels were prepared through in situ polymerization of acrylic acid monomers in chitosan solutions. Subsequently, cations and anions were introduced into the PEC hydrogels to form strong electrostatic interactions with the polymer chains. The mechanical properties of the DPC hydrogels strongly depended on the ionic concentration and the valence state of the loading ions. The tensile strength of DPC-Na 8-20-2.0, DPC-Mg 8-20-2.0, DPCAl 8-20-2.0 and DPC-Sul 8-20-0.8 reached to 2.36, 12.59, 65.1 and 2.80 MPa, respectively, which were significantly higher than that of PEC 8-20 (0.29 MPa). Moreover, DPC-Na, DPC-Mg and DPC-Sul still maintained a good flexibility. Speci fically, hydrogels of DPC-Ca exhibited ionic conductivity and freeze tolerance, which could be cooled to -20 degrees C without freezing. The DPC strategy opens an avenue to fabricate hydrogels with outstanding mechanical properties.
引用
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页数:11
相关论文
共 46 条
[1]
Dual physically crosslinked hydrogels based on the synergistic effects of electrostatic and dipole-dipole interactions [J].
Cao, Jinfeng ;
Cai, Yan ;
Yu, Lisha ;
Zhou, Jinping .
JOURNAL OF MATERIALS CHEMISTRY B, 2019, 7 (04) :676-683
[2]
Dual Physical Crosslinking Strategy to Construct Moldable Hydrogels with Ultrahigh Strength and Toughness [J].
Cao, Jinfeng ;
Li, Jiahong ;
Chen, Yumei ;
Zhang, Lina ;
Zhou, Jinping .
ADVANCED FUNCTIONAL MATERIALS, 2018, 28 (23)
[3]
Homogeneous synthesis and characterization of chitosan ethers prepared in aqueous alkali/urea solutions [J].
Cao, Jinfeng ;
You, Jun ;
Zhang, Lina ;
Zhou, Jinping .
CARBOHYDRATE POLYMERS, 2018, 185 :138-144
[4]
Dual-Crosslink Physical Hydrogels with High Toughness Based on Synergistic Hydrogen Bonding and Hydrophobic Interactions [J].
Chang, Xiaohua ;
Geng, Yuhui ;
Cao, Heqing ;
Zhou, Jian ;
Tian, Ye ;
Shan, Guorong ;
Bao, Yongzhong ;
Wu, Zi Liang ;
Pan, Pengju .
MACROMOLECULAR RAPID COMMUNICATIONS, 2018, 39 (14)
[5]
Bioinspired Hydrogel Electrospun Fibers for Spinal Cord Regeneration [J].
Chen, Chunmao ;
Tang, Jincheng ;
Gu, Yong ;
Liu, Lili ;
Liu, Xingzhi ;
Deng, Lianfu ;
Martins, Claudia ;
Sarmento, Bruno ;
Cui, Wenguo ;
Chen, Liang .
ADVANCED FUNCTIONAL MATERIALS, 2019, 29 (04)
[6]
Conductive regenerated silk-fibroin-based hydrogels with integrated high mechanical performances [J].
Chen, Feng ;
Lu, Shaoping ;
Zhu, Lin ;
Tang, Ziqing ;
Wang, Qilin ;
Qin, Gang ;
Yang, Jia ;
Sun, Gengzhi ;
Zhang, Qiang ;
Chen, Qiang .
JOURNAL OF MATERIALS CHEMISTRY B, 2019, 7 (10) :1708-1715
[7]
A Novel Design Strategy for Fully Physically Linked Double Network Hydrogels with Tough, Fatigue Resistant, and Self-Healing Properties [J].
Chen, Qiang ;
Zhu, Lin ;
Chen, Hong ;
Yan, Hongli ;
Huang, Lina ;
Yang, Jia ;
Zheng, Jie .
ADVANCED FUNCTIONAL MATERIALS, 2015, 25 (10) :1598-1607
[8]
Algae-mussel-inspired hydrogel composite glue for underwater bonding [J].
Cholewinski, Aleksander ;
Yang, Fut ;
Zhao, Boxin .
MATERIALS HORIZONS, 2019, 6 (02) :285-293
[9]
Toughening elastomers using mussel-inspired iron-catechol complexes [J].
Filippidi, Emmanouela ;
Cristiani, Thomas R. ;
Eisenbach, Claus D. ;
Waite, J. Herbert ;
Israelachvili, Jacob N. ;
Ahn, B. Kollbe ;
Valentine, Megan T. .
SCIENCE, 2017, 358 (6362) :502-505
[10]
Why are double network hydrogels so tough? [J].
Gong, Jian Ping .
SOFT MATTER, 2010, 6 (12) :2583-2590