Highly stretchable and tough alginate-based cyclodextrin/Azo-polyacrylamide interpenetrating network hydrogel with self-healing properties

被引：49

作者：

He, Furui ^{[1
]}

Wang, Longzheng ^{[1
]}

Yang, Shujuan ^{[1
]}

Qin, Wenqi ^{[1
]}

Feng, Yuhong ^{[1
]}

Liu, Yuanyuan ^{[1
]}

Zhou, Yang ^{[1
]}

Yu, Gaobo ^{[1
]}

Li, Jiacheng ^{[1
]}

机构：

[1] Hainan Univ, Key Lab Adv Mat Trop Isl Resources, Minist Educ, Sch Chem Engn & Technol, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2021年 / 256卷

基金：

中国国家自然科学基金;

关键词：

Highly stretchable and tough gel; Self-healing; Sodium alginate; Beta-cyclodextrin; Interpenetrating network polymer gels; SUPRAMOLECULAR HYDROGELS; MECHANICAL-PROPERTIES; CONTROLLED-RELEASE; BEADS; CHITOSAN; TEMPERATURE; ADSORPTION; DELIVERY; WATER; ACID;

D O I：

10.1016/j.carbpol.2020.117595

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Most structural self-healing materials were developed based on either reversible supramolecular interaction or dynamic covalent bonding. It seems a good idea to incorporate self-healing properties into high-performance materials. In this study, we fabricated the alginate-based cyclodextrin and polyacrylamide azobenzene highly stretchable and tough interpenetrating composite hydrogel with self-repairing behavior under light irradiation. Initially, the alginate-based cyclodextrin and polyacrylamide azobenzene were designed and synthesized. The corresponding structural, thermal, and morphological properties of hydrogels were characterized. The reversible transformation of the sol-gel can be achieved by the irradiation upon ultraviolet light and visible light. The self healing behavior of this composited gel is based on the host-guest interaction between cyclodextrin and azobenzene. The recovery gel elongation at 48 h healing in the dark condition was is 0.04 MPa, with an elongation of 1140 %. Therefore, this gel can achieve self-healing ability while maintaining highly stretchable and tough performance.

引用

页数：9

共 60 条

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