Abstract
Shape memory polymers (SMP) and zwitterionic polymers both have great applications in biomedical fields. This works successfully combines functionalities of zwitterionic polymers and SMP, developing new kind of zwitterionic copolymers having a multi-shape memory effect (SME) and a moisture-sensitive SME. The results demonstrate that a series of zwitterionic multi-SMPs, coded as p(DMAPS-co-AA), were synthesized from DMAPS and acrylic acid (AA). A micro-phase separated structure is formed in the resulting p(DMAPS-co-AA). The strong hydrogen bonding between AA segments serves as a reversible switch, while the strong electrostatic forces among DMAPS segments serve as physical crosslinkers. Therefore, shape memory testing demonstrates that p(DMAPS-co-AA) shows not only dual-SME, but also triple-SME and quadruple-sSME. Moreover, in addition to the thermally-induced SME, p(DMAPS-co-AA) also shows moisture-sensitive SME. It is thus proposed that this zwitterionic multi-SMP could find great potential applications in smart biomedical fields.
| Original language | English |
|---|---|
| Pages (from-to) | 6645-6655 |
| Number of pages | 11 |
| Journal | Journal of Materials Chemistry B |
| Volume | 3 |
| Issue number | 32 |
| DOIs | |
| State | Published - 3 Jul 2015 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2015 The Royal Society of Chemistry.
ASJC Scopus subject areas
- General Medicine
- General Chemistry
- Biomedical Engineering
- General Materials Science