Free Reprocessability of Tough and Self-Healing Hydrogels Based on Polyion Complex

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• 作者：Feng Luo ; Tao Lin Sun ; Tasuku Nakajima ; Takayuki Kurokawa ; Abu Bin Ihsan ; Xufeng Li ; Honglei Guo ; Jian Ping Gong
• 刊名：ACS Macro Letters
• 出版年：2015
• 出版时间：September 15, 2015
• 年：2015
• 卷：4
• 期：9
• 页码：961-964
• 全文大小：294K
• ISSN：2161-1653

文摘

Tough hydrogels with facile processability to reform into various shapes are required in many practical applications. In this work, we reported that a novel, tough, and self-healing physical hydrogel based on polyion complex (PIC) can be dissolved in 4 M NaCl solution to form a PIC solution. The PIC solution can be easily reprocessed into various shapes, such as thin films, sheets, fibers, and capsules, by using simple methods, such as casting and injection, while maintaining excellent mechanical properties comparable to, or even better than, the original hydrogel. The reprocessability and robust mechanical properties of PIC hydrogels are promising for practical applications in soft materials, especially in 3D/4D printing technology.