In-Situ Preparation of Polyethylene Glycol/Poly(acrylamide-co-acrylic acid) Fluorescent Hydrogel

被引：0

作者：

Yang Y. ^{[1
]}

Zhou X. ^{[1
]}

Zheng D. ^{[1
]}

Xu Y. ^{[1
,2
]}

Zeng B. ^{[1
,2
]}

Chen G. ^{[1
,2
]}

Luo W. ^{[1
,2
]}

Yuan C. ^{[1
,2
]}

Dai L. ^{[1
,2
]}

机构：

[1] School of Materials, Xiamen University, Xiamen

[2] Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2022年 / 38卷 / 06期

关键词：

Fluorescence; Highly resilience; Hydrogel; In-situ; Ion sensitivity;

D O I：

10.16865/j.cnki.1000-7555.2022.0117

中图分类号：

学科分类号：

摘要：

Linear polyethylene glycol (PEG) was added into the cross-linking polymer networks of acrylamide and acrylic acid to form semi interpenetrating polymer networks to improve the mechanical properties of the hydrogels. In the hydrogel networks, citric acid (CA) and ethylenediamine (EDA) were introduced to form non conjugated fluorescent polymer (NCFP) dots thus preparing polyethylene glycol/poly(acrylamide-co-acrylic acid) PEG/P(AM-co-AA) fluorescent hydrogels with high resilience. The hydrogels have the good mechanical strength, toughness, high fluorescence intensity and fluorescence homogeneity, and photoluminescence with metal ion sensitivity. The tensile test results show that the breaking strength of PEG/P (AM-co-AA) fluorescent hydrogel reaches ~192.2 kPa, and it can return to its initial state after stretching four times. The photoluminescence results show that the blue fluorescence of the hydrogels can be excited at the wavelength of 365 nm (emission wavelength of 434~467 nm). The fluorescence performance has strong Fe3+ sensitivity, and the quenching efficiency can reach 99%. The fluorescent hydrogels have potential applications in flexible electronic devices and biosensors. © 2022, Editorial Board of Polymer Materials Science & Engineering. All right reserved.

引用

页码：153 / 160and169

共 34 条

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