Construction of high-strength p(HEMA-co-AA) fluorescent hydrogels based on modified carbon dots as chemically crosslinkers

被引:0
作者
Jianying Wang
Xiaofei Ma
Lai Wei
Xiang Zhu
Yuhua Zhu
Gang Wang
Tao Mei
Jinhua Li
Xianbao Wang
机构
[1] Hubei University,Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Ma
[2] Wuhan Vocational College of Software and Engineering,Wuhan Drug Solubilization and Delivery Technology Research Center, School of Environment and Biochemical Engineering
来源
Colloid and Polymer Science | 2018年 / 296卷
关键词
Hydrogels; Carbon dots; Crosslinking points; Photoluminescence; High mechanical strength;
D O I
暂无
中图分类号
学科分类号
摘要
A novel kind of p(HEMA-co-AA) fluorescent hydrogels with high strength are first generated through one-step photopolymerization of 2-hydroxyethyl methacrylate (HEMA), acrylic acid (AA), and HEMA-modified carbon dots (HMCDs). Herein, HMCDs are used as new nontoxic fluorescent crosslinking centers. The novel HMCDs-based fluorescent hydrogels not only display stable photoluminescence, but have high mechanical strength. The fluorescent properties of the HMCDs-based hydrogel films are similar as that of CDs solution and stable for a prolonged duration. Besides, the fluorescent intensity of HMCDs-based hydrogels can be changed by controlling the HMCD content. The tensile strength of the fluorescent hydrogels with 1 wt% HMCD content can reach up to ~ 12 MPa, higher than that of the conventional hydrogels. More importantly, the mechanical properties can be adjusted by changing the water content and HMCD content. The enhanced mechanical strength is probably attributed to the relatively ordered hierarchical microstructure.
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页码:745 / 752
页数:7
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