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

Macromolecular Rapid Communications - Tập 33 Số 3 - Trang 225-231 - 2012
Yanjiao Han1, Tao Bai1, Yuan Liu1, Xinyun Zhai1, Wenguang Liu1
1School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072, P. R. China

Tóm tắt

AbstractIn this study, we demonstrate that dipole–dipole 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 dipole–dipole containing monomer and hydrophilic comonomer are shown to exhibit triple shape memory (SM) triggered by the dynamic association and dissociation of dipole–dipole 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.

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Thông tin
Thông tin xuất bản

Macromolecular Rapid Communications

Tập 33 Số 3

225-231

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