肿胀 的
自愈水凝胶
氢键
表征(材料科学)
材料科学
粘结强度
高分子化学
复合材料
氢
化学工程
化学
有机化学
纳米技术
胶粘剂
分子
图层(电子)
工程类
作者
Muhammad Irfan,Ji‐Dong Liu,Xiang‐Yun Du,Su Chen,Ji Jun Xiao
摘要
Abstract Recently, double network (DN) gels with dynamic non‐covalent interaction such as hydrogen bonds has drawn much attention as an innovative material having both high water content and high mechanical strength. Research efforts have identified DN gels as a promising class of materials due to their unique network architecture. These gels comprise two interpenetrating networks formed by different types of polymer. Herein, we report a tough DN hydrogel with high mechanical strength and high swelling ability. The DN gel is synthesized via a two‐step network formation. The first network gel was synthesized via frontal polymerization. Then, the first gel is immersed in an aqueous solution of a second monomer and carrying out a second polymerization in the presence of first network. The spectroscopic analysis and thermal behavior with differential scanning calorimeter measurements corroborated the existence of hydrogen bonds. The mechanical test and microscopic morphology were further explored to explain the strength and high imbibing characteristics. We expect that this facile strategy may explore a dynamic and tunable hydrogel to expand its potential applications in biomedical field.
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