Desolvation Induced Origami of Photocurable Polymers by Digit Light Processing
Open accessAbstract
Self-folding origami is of great interest in current research on functional materials and structures, but there is still a challenge to develop a simple method to create freestanding, reversible, and complex origami structures. This communication provides a feasible solution to this challenge by developing a method based on the digit light processing technique and desolvation-induced self-folding. In this new method, flat polymer sheets can be cured by a light field from a commercial projector with varying intensity, and the self-folding process is triggered by desolvation in water. Folded origami structures can be recovered once immersed in the swelling medium. The self-folding process is investigated both experimentally and theoretically. Diverse 3D origami shapes are demonstrated. This method can be used for responsive actuators and the fabrication of 3D electronic devices.
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Zhao et al. employed frontal polymerization, exploiting the change in intensity of photo-polymerization to create spatially-varying material parameters in single-material structures.
“The frontal polymerization process was employed by Zhao et al. [216,217], who exploited the change in the intensity of photo-polymerization to create spatially-varying material parameters in single-material structures.”
From Two-Way and Multiple-Way Shape Memory Polymers for Soft Robotics: An Overview (2020) · cites this paper as [216]
The Introduction describes using grayscale light patterns and photoabsorbers to vary light intensity in three dimensions, producing a continuous variation in cross-link density within the resin. Section 2.2 confirms that lower-intensity regions were less cross-linked than higher-intensity regions. The paper describes this as digit light processing and desolvation-induced folding; it does not identify the method as frontal polymerization. (LLM, conf=0.83)
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- Authors
- Zhao, Z., Wu, J., Mu, X., Chen, H., Qi, H. J., & Fang, D.
- Affiliations
- Georgia Institute of Technology (US)
- Beijing Institute of Technology (CN)
- Corresponding author
- Qi, H. Jerry
- Fang, Daining
- Venue
- Macromolecular Rapid Communications
- Publisher
- Wiley
- Published
- 2016-12-22
- Volume
- 38
- Issue
- 13
- ISSN
- 1022-1336 (ISSN-L)
- 1521-3927
- OpenAlex
- W2566399367
- Cited by
- 153
- References
- 31
- Citations by year
- 2026: 8 · 2025: 13 · 2024: 9 · 2023: 25 · 2022: 14 · 2021: 23 · 2020: 23 · 2019: 20 · 2018: 12 · 2017: 6
- FWCI
- 11.26
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Macromolecular Rapid Communications (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Directorate for Engineering (CMMI‐1462894, CMMI‐1462895, EFRI‐1435452)
- Air Force Office of Scientific Research (15RT0885)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Physical Sciences › Chemistry › Organic Chemistry › Photopolymerization techniques and applications
- Keywords
- origami, self-folding, desolvation, photocurable polymers, reversible folding, swelling, 3D printing
- MeSH terms
- Light, Nucleic Acid Conformation, Photochemistry, Polymers, Water, Nanotechnology
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