Reversible bidirectional shape-memory polymers
Abstract
Free-standing copolymer network samples with two types of crystallizable domains are capable of a fully reversible bidirectional shape-memory effect. One set of crystallizable domains determines the shape-shifting geometry while the other provides the thermally controlled actuation capability.
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Contributions to stress-free two-way SMPs show the possibility of achieving complex reversible shape changes such as elongation/contraction, bending/unbending, and coiling/uncoiling, and of tuning the actuation temperature.
“Contributions to this class can be found, e.g., in [128-135], and show the possibility of achieving complex reversible shape changes (e.g., elongation/contraction, bending/unbending, coiling/uncoiling), and of tuning the actuation temperature.”
From Two-Way and Multiple-Way Shape Memory Polymers for Soft Robotics: An Overview (2020) · cites this paper as [128]
To achieve stress-free reversible shape memory, current approaches rely on introduction of internal stress, typically necessitating two crystalline phases.
“To achieve stress-free reversible shape memory33–36, current approaches rely on the introduction of an internal stress. This typically necessitates the use of two crystalline phases in which the high melting phase provides the internal stress whereas the low melting phase serves as the actuation phase33–35.”
From On demand shape memory polymer via light regulated topological defects in a dynamic covalent network (2020) · cites this paper as [33]
In 2013 Behl et al. showed that 2W-SME can be obtained without applying a constant stress for a multiphasic copoly(ester-urethane) network made of at least two semi-crystalline polyester segments (PCL and PPDL).
“In 2013 Behl et al. have shown that the 2W-SME can be obtained without applying a constant stress for a multiphasic copoly(ester-urethane) network made of, at least, two semi-crystalline polyester segments (PCL and PPDL) [91].”
From Shape-memory polymers for multiple applications in the materials world (2016) · cites this paper as [91]
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- Authors
- Behl, M., Kratz, K., Zotzmann, J., Nöchel, U., & Lendlein, A.
- Affiliations
- Helmholtz-Zentrum Hereon (DE)
- Corresponding author
- Lendlein, Andreas
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2013-06-13
- Volume
- 25
- Issue
- 32
- Pages
- 4466-4469
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2055524690
- Cited by
- 496
- References
- 21
- Citations by year
- 2026: 16 · 2025: 35 · 2024: 34 · 2023: 41 · 2022: 66 · 2021: 47 · 2020: 64 · 2019: 46 · 2018: 40 · 2017: 39 · 2016: 30 · 2015: 21 · 2014: 12 · 2013: 4
- FWCI
- 29.63
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Advanced Materials (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Keywords
- shape memory polymers, reversible actuation, copolymer networks
- MeSH terms
- Biocompatible Materials, Crystallization, Polymers, Temperature
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