Cited by 175Polymer composites and self-healingAdvanced Materials and MechanicsMaterial Dynamics and Properties

Designing multiple-shape memory polymers with miscible polymer blends: Evidence and origins of a triple-shape memory effect for miscible PLLA/PMMA blends

Samuel, Cédric, Barrau, Sophie, Lefebvre, Jean-Marc, Raquez, Jean-Marie, Dubois, Philippe·2014·Macromolecules

Abstract

Shape memory properties of polymers represent one of the most expanding fields in polymer science related to numerous smart applications. Recently, multiple-shape memory polymers (multiple-SMPs) have attracted significant attention and can be achieved with complex polymer architectures. Here, miscible PLLA/PMMA blends with broad glass transitions are investigated as an alternative platform to design multiple-SMPs. Dual-shape memory experiments were first conducted at different stretching temperatures to identify the so-called “temperature memory effect”. The switch temperature of the symmetric 50% PLLA/50% PMMA blend smoothly shifted from 70 to 90 °C for stretching temperatures increasing from 65 to 94 °C, attesting for a significant “temperature memory effect”. Asymmetric formulations with 30% and 80% PMMA also present a “temperature memory effect”, but the symmetric blend clearly appeared as the most efficient formulation for multiple-shape memory applications. A programming step designed with two successive stretchings within the broad glass transition consequently afforded high triple-shape memory performances with tunable intermediate shapes, demonstrating that the symmetric blend could represent an interesting candidate for future developments. Advanced shape recovery processes are consistent with a selective activation of specific “soft domains” or nanodomains arising from the broad glass transition and the large distribution of relaxation time observed by DSC and dielectric spectroscopy. Polarized IR measurements pointed out that the composition of activated/oriented “soft domains” could vary with stretching temperature, giving rise to the “temperature-memory effect”. Consequently, from a polymer physics standpoint, nanoscale compositional heterogeneities within the symmetric blend could be suspected and discussed on the basis of available models for miscible blends and for multiple-SMPs.

Integrity signals

Registry

Crossref · 10.1021/ma500846x

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The temperature-memory effect approach has been largely employed to achieve multiple-way SMPs with a broad glass transition or a broad melting transition as the switching transition.

    “Such an approach has been largely employed to achieve multiple-way SMPs with a broad glass transition [82-92] and a broad melting transition [93-95] as the switching transition.”
  • PLLA/PMMA blends processed by twin-screw mini-extruder showed a unique and broad Tg, especially for the 50%/50% blend.

    “Indeed, PLLA/PMMA blends processed by twin-screw mini-extruder showed a unique and broad Tg, especially for the 50%/50% blend.”
  • A recent work from our group investigated m-SME in miscible polymer pairs with a broad Tg.

    “Finally, a recent work from our group investigated m-SME in miscible polymer pairs with a broad Tg [83].”

Cites

Flagged first, then by citations

1 of the 46 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Samuel, C., Barrau, S., Lefebvre, J.-M., Raquez, J.-M., & Dubois, P.
Affiliations
  • University of Mons (BE)
  • Centre National de la Recherche Scientifique (FR)
  • Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons - UMONS, Place du Parc 23, B-7000 Mons, Belgium
Corresponding author
Samuel, Cédric
Venue
Macromolecules
Published
2014-09-17
Volume
47
Issue
19
Pages
6791-6803
ISSN
  • 0024-9297 (ISSN-L)
  • 1520-5835
OpenAlex
W2067262806
Cited by
175
References
46
Citations by year
2026: 7 · 2025: 12 · 2024: 10 · 2023: 10 · 2022: 17 · 2021: 16 · 2020: 19 · 2019: 22 · 2018: 14 · 2017: 14 · 2016: 18 · 2015: 16
FWCI
11.18
Type
journal article
Language
en
Open access
closed
Locations
  • Macromolecules (publishedVersion)
  • PolyPublie (École Polytechnique de Montréal) (submittedVersion)
Funders
  • European Commission
  • Fonds De La Recherche Scientifique - FNRS
  • Fonds de la Recherche Fondamentale Collective
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 › Materials Chemistry › Material Dynamics and Properties
Keywords
triple shape memory effect, miscible polymer blends, temperature memory effect, nanodomains, distribution of relaxation times, shape recovery, polymer nanocomposites

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review