Structure-property relationship and shape memory effect of polyurethane copolymer cross-linked with pentaerythritol
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For (PTMG/MDI)-based SMP cross-linked with pentaerythritol, best shape memory properties occur at hard segment content of 25 wt% and the highest cross-linker contents chosen.
“For the investigated (polytetramethylene glycol (PTMG)/4,4'-methylene bis(phenylisocyanate) (MDI))-based SMP, it was shown that the chemical cross-linking of hard segments through pentaerythritol, using different cross-linker contents of 2, 4 and 6 wt% at hard segment contents of 25 and 30 wt%, respectively, gives best SM properties at hard segment contents of 25 wt% and the highest cross-linker”
From Review on the Functional Determinants and Durability of Shape Memory Polymers (2010) · cites this paper as [151]
Increasing hard segment content by 5 wt% while keeping cross-linker content constant favored drops in shape fixity close to 50% and in shape recoverability to 70%.
“Interestingly, the increase in hard segment content by 5 wt%, while simultaneously keeping the cross-linker content constant, favored drops in shape fixity close to 50% and in shape recoverability to 70%.”
From Review on the Functional Determinants and Durability of Shape Memory Polymers (2010) · cites this paper as [151]
For that SMP, shape fixity ratios of 91% and shape recovery ratios of 94% were held after the third thermo-mechanical cycle for maximum strains εm = 100%.
“Here, shape fixity ratios of 91% and shape recovery ratios of 94% were held after the third thermo-mechanical cycle for maximum strains of ε m = 100%.”
From Review on the Functional Determinants and Durability of Shape Memory Polymers (2010) · cites this paper as [151]
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References 15 · Cited by 30
- Authors
- Cho, T. K., Chong, M. H., Chun, B. C., Kim, H. R., & Chung, Y.-C.
- Affiliations
- University of Suwon (KR)
- Corresponding author
- Chun, Byoung Chul
- Venue
- Fibers and Polymers
- Published
- 2007-01
- Volume
- 8
- Issue
- 1
- Pages
- 7-12
- ISSN
- 1229-9197 (ISSN-L)
- 1875-0052
- OpenAlex
- W2018581260
- Cited by
- 30
- References
- 15
- Citations by year
- 2025: 1 · 2023: 1 · 2022: 1 · 2020: 2 · 2019: 1 · 2017: 1 · 2016: 1 · 2015: 1 · 2013: 2 · 2012: 2
- FWCI
- 4.04
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Fibers and Polymers (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 › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Keywords
- shape memory effect, polyurethane block copolymers, pentaerythritol, crosslinking, shape recovery, glass transition temperature, tensile properties, structure-property relationships
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