自愈水凝胶
不稳定性
共聚物
单体
高分子化学
金属
配体(生物化学)
三吡啶
极限抗拉强度
材料科学
疏水效应
丙烯酰胺
化学工程
化学
聚合物
复合材料
有机化学
生物化学
受体
工程类
作者
Prachishree Panda,Agniva Dutta,Debabrata Ganguly,Santanu Chattopadhyay,Rajat K. Das
摘要
Abstract In this contribution, hydrophobic association and metal‐ligand coordination have been employed in a dual physical crosslinking strategy to access hydrogels based on micellar copolymerization of acrylamide and a hydrophobic acrylic monomer (containing terpyridine (terpy) for metal‐ligand interaction). The mechanical properties of these hydrogels are strongly influenced by the thermodynamic stability and kinetic lability of the metal‐terpy crosslinks present in these materials. While the hydrogel tensile strength and stability on water exposure are enhanced by choosing stronger Fe 2+ ‐terpy crosslinks, the weaker and more kinetically labile Zn 2+ ‐terpy coordination bonds enable significantly higher energy dissipation under tensile loading and self‐healing in the resultant hydrogels.
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