Our groups further designed a kind of moisture and water-responsive shape
memory and self-healing materials [51]. This material had semi-interpenetrating
polymer networks, which contained two kinds of supramolecules, hydrogen bonds
and β-CD-Ad complexes (Fig. 6a). The hydrogen bonds served as water-sensitive
switches, making the material showed moisture-induced shape memory effect. The
host-guest interactions acted both as permanent phases and self-healing motifs,
enabling further increased chain mobility at the cracks and self-healing function.
As shown in Fig. 6b, the sample was damaged and deformed as V-shape. The wound
was too wide to be self-healed. As the sample was put into 100% RH environment
Fig. 6 (a) Synthetic route of the PVP/P(HEMA-CO-Ba) semi-IPNs. (b) The progress of moisturesensitive shape memory-assisted self-assisted self-healing. (Reprinted in part with permission from
Ref. [51].Copyright 2017, John Wiley and Sons)
22 Cyclodextrins-Based Shape Memory Polymers and Self-Healing Polymers
597
memory and self-healing materials [51]. This material had semi-interpenetrating
polymer networks, which contained two kinds of supramolecules, hydrogen bonds
and β-CD-Ad complexes (Fig. 6a). The hydrogen bonds served as water-sensitive
switches, making the material showed moisture-induced shape memory effect. The
host-guest interactions acted both as permanent phases and self-healing motifs,
enabling further increased chain mobility at the cracks and self-healing function.
As shown in Fig. 6b, the sample was damaged and deformed as V-shape. The wound
was too wide to be self-healed. As the sample was put into 100% RH environment
Fig. 6 (a) Synthetic route of the PVP/P(HEMA-CO-Ba) semi-IPNs. (b) The progress of moisturesensitive shape memory-assisted self-assisted self-healing. (Reprinted in part with permission from
Ref. [51].Copyright 2017, John Wiley and Sons)
22 Cyclodextrins-Based Shape Memory Polymers and Self-Healing Polymers
597