Zinc Ion Uniquely Induced Triple Shape Memory Effect of Dipole-Dipole Reinforced Ultra-High Strength Hydrogels

被引：106

作者：

Han, Yanjiao ^{[1
]}

Bai, Tao ^{[1
]}

Liu, Yuan ^{[1
]}

Zhai, Xinyun ^{[1
]}

Liu, Wenguang ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2012年 / 33卷 / 03期

基金：

中国国家自然科学基金;

关键词：

dipole-dipole reinforced; high-strength hydrogel; shape memory; zinc ion responsive; POLYMER NANOCOMPOSITES; GELS; NETWORKS;

D O I：

10.1002/marc.201100683

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

In this study, we demonstrate that dipoledipole interaction can be employed to not only tremendously enhance the mechanical properties of hydrogel, but also impart the gel to an amazing ability to memorize two temporary shapes. Cross-linked hydrogels synthesized by copolymerization of acrylonitrile, a dipoledipole containing monomer and hydrophilic comonomer are shown to exhibit triple shape memory (SM) triggered by the dynamic association and dissociation of dipoledipole pairing between cynao groups uniquely responding to zinc ion species and concentration. This approach contributes to design and fabrication of novel SM hydrogels in a distinct way from conventional SM materials.

引用

页码：225 / 231

页数：7

共 34 条

[1]

Construction of an ultrahigh strength hydrogel with excellent fatigue resistance based on strong dipole-dipole interaction [J].