Cited by 38Advanced Materials and MechanicsPolymer composites and self-healingPolymer crystallization and properties

A one-dimensional phenomenological model for the two-way shape-memory effect in semi-crystalline networks

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Scalet, Giulia, Pandini, Stefano, Messori, Massimo, Toselli, Maurizio, Auricchio, Ferdinando·2018·Polymer

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Crossref · 10.1016/j.polymer.2018.10.027

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  • The two-way SME under constant tensile stress is based on elongation of the polymer network caused by entropy elasticity in the rubbery region and crystallization upon cooling below the crystallization temperature, and on contraction caused by melting of the temporary-oriented crystalline domain upon heating above the melting temperature.

    “The two-way SME under constant tensile stress is based on the elongation of the polymer network, caused by an entropy elasticity effect in the rubbery region and the crystallization upon cooling below the crystallization temperature, and on the contraction of the polymer network, caused by the melting of the temporary-oriented crystalline domain upon heating above the melting temperature.”
  • Materials can achieve two-way reversible strain variations between 10% and 100% under moderate stresses, typically between hundreds of kPa and a few MPa.

    “Particularly, the two-way SME was shown to be tailored by the applied stress, the cooling/heating rate, and the crosslink density, leading to materials capable of two-way reversible strain variations between 10% and 100% under the application of moderate stresses (typically, between hundreds of kPa and a few MPa) [103].”
  • The two-way SME was shown to be tailored by the applied stress, the cooling/heating rate, and the crosslink density.

    “Particularly, the two-way SME was shown to be tailored by the applied stress, the cooling/heating rate, and the crosslink density, leading to materials capable of two-way reversible strain variations between 10% and 100% under the application of moderate stresses (typically, between hundreds of kPa and a few MPa) [103].”
  • Recovery effects in two-way SMPs were shown to be sharp and fast because they are triggered by melting instead of being activated by glassy-rubbery transition.

    “Moreover, recovery effects were shown to be sharp and fast, since they are triggered by melting instead of being activated by glassy-rubbery transition.”
  • The model by Scalet et al. is validated on experiments on semi-crystalline networks based on poly( # -caprolactone) and demonstrates capability in describing the effect of crosslink density on SME, the dependence of microstructural evolution on applied load and heating/cooling rate, and the presence of thermal strains.

    “The model is validated on experiments on semi-crystalline networks based on poly( # -caprolactone) and demonstrates model capability in describing material features such as the effect of the crosslink density on SME, the dependence of microstructural evolution on applied load and heating/cooling rate, and the presence of thermal strains.”

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Authors
Scalet, G., Pandini, S., Messori, M., Toselli, M., & Auricchio, F.
Affiliations
  • University of Pavia (IT)
  • National Interuniversity Consortium of Materials Science and Technology (IT)
  • University of Modena and Reggio Emilia (IT)
  • University of Bologna (IT)
Corresponding author
Scalet, Giulia
Venue
Polymer
Publisher
Elsevier BV
Published
2018-12
Volume
158
Pages
130-148
ISSN
0032-3861 (ISSN-L)
OpenAlex
W2897240774
Cited by
38
References
40
Citations by year
2026: 5 · 2025: 4 · 2024: 5 · 2023: 5 · 2022: 6 · 2021: 4 · 2020: 6 · 2019: 3
FWCI
2.08
Type
journal article
Language
en
Open access
Locations
  • Polymer (publishedVersion)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion)
  • PORTO@Iris (submittedVersion)
  • Institutional Research Information System (Università degli Studi di Brescia) (submittedVersion)
  • IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
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
two-way shape memory effect, one-way shape memory effect, semicrystalline polymers, crosslinked polymer networks, polycaprolactone, thermoresponsive polymers, crosslink density, microstructure evolution, thermal strain, polymer actuators, stimuli-responsive materials

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