Water‐Responsive Shape Memory Polyurethane Block Copolymer Modified with Polyhedral Oligomeric Silsesquioxane
Abstract
Nanostructured polyurethane block copolymers with shape memory were synthesized by using polyhedral oligomeric silsesquioxane (POSS) molecules and poly(ethylene glycol) (PEG), which acted as the hydrophobic and hydrophilic groups, respectively. The hard segment domains appeared to be dominantly governed by POSS molecules according to X‐ray diffraction and Fourier transform‐infrared (FT‐IR) measurements. As the POSS content increased, the phase separation between hard and soft segments gradually developed, followed by the crystallization of POSS molecules, and the melting temperature and heat of fusion for POSS crystals increased. The water‐responsive shape memory behavior which resulted from the dissolution of soft segments was demonstrated at 30°C. More than 70% shape recovery was achieved in the water‐responsive shape recovery test, which depended on the POSS content.
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One of the methods to obtain outstanding water-active SME is filling a hydrophilic or water soluble ingredient in SMPs.
“One of the methods to obtain outstanding water-active SME is filling a hydrophilic or water soluble ingredient in SMPs [21,404].”
From A review of stimuli-responsive shape memory polymer composites (2013) · cites this paper as [404]
For (PEG/PDI/POSS)-based SMPs, dissolution of PEG soft segment in water induced moisture sensitivity, resulting in recovery from programmed ring-shaped geometry to almost linear permanent shape within 5 min at 30 °C or 10 s at 60 °C.
“Jung et al. [220] realized for (PEG/1,4-phenylene diisocyanate (PDI)/POSS)-based SMPs the induction of moisture sensitivity through dissolution of the PEG soft segment constituent in water, resulting in specimen recovery from a programmed, ring-shaped geometry into an almost linear permanent shape within 5 min at 30 °C or, alternatively, within 10 s at 60 °C.”
From Review on the Functional Determinants and Durability of Shape Memory Polymers (2010) · cites this paper as [220]
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References 22 · Cited by 131
- Authors
- Chae Jung, Y., Hwa So, H., & Whan Cho, J.
- Affiliations
- a Department of Textile Engineering , Konkuk University , Seoul , Korea
- Venue
- Journal of Macromolecular Science, Part B
- Publisher
- Informa UK Limited
- Published
- 2006-08
- Volume
- 45
- Issue
- 4
- Pages
- 453-461
- ISSN
- 0022-2348 (ISSN-L)
- 1525-609X
- OpenAlex
- W2007507097
- Cited by
- 131
- References
- 22
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 2 · 2023: 2 · 2022: 5 · 2021: 6 · 2020: 6 · 2019: 2 · 2018: 5 · 2017: 6 · 2016: 14 · 2015: 8 · 2014: 16 · 2013: 13 · 2012: 8
- FWCI
- 4.83
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Macromolecular Science Part B (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
- Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
- Keywords
- polyhedral oligomeric silsesquioxane, polyurethane block copolymers, polyethylene glycol, shape recovery, melting point
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