Cited by 23Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesBlock Copolymer Self-Assembly

Sequential crystallization and morphology of triple crystalline biodegradable PEO-b-PCL-b-PLLA triblock terpolymers

Open access
Palacios, Jordana K., Mugica, Agurtzane, Zubitur, Manuela, Iturrospe, Amaia, Arbe, Arantxa, Liu, Guoming, Wang, Dujin, Zhao, Junpeng +2 more·2016·RSC Advances

Abstract

The sequential crystallization of poly(ethylene oxide)- b -poly(ε-caprolactone)- b -poly( l -lactide) (PEO- b -PCL- b -PLLA) triblock terpolymers, in which the three blocks are able to crystallize separately and sequentially from the melt, is presented.

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Crossref · 10.1039/c5ra25812j

Cites

60 of 60 references verified0 citation errors · 0 not checkable

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  • The proposed lamellar arrangement includes the alternation of only one lamella of either PCL or PEO in between two lamellae of PLLA.

    “From our observations, we proposed a lamellar arrangement that includes the alternation of only one lamella of either PCL or PEO in between two lamellae of PLLA.”

    From Direct identification of three crystalline phases in PEO-b-PCL-b-PLLA triblock terpolymer by In situ hot-stage atomic force microscopy (2020) · cites this paper as [35]

    The Morphology section reports PCL lamellar crystals in the interlamellar regions of PLLA spherulites and subsequent PEO crystallization there. The Conclusions describe three types of lamellae coexisting, but the paper does not specify that exactly one PCL or PEO lamella lies between two PLLA lamellae. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • A tri-lamellar self-assembly that included lamellae of the three phases was indirectly elucidated from AFM observations complemented with SAXS experiments and theoretical simulations.

    “A tri-lamellar self-assembly that included lamellae of the three phases was indirectly elucidated from AFM observations complemented with SAXS experiments and theoretical simulations.”

    From Direct identification of three crystalline phases in PEO-b-PCL-b-PLLA triblock terpolymer by In situ hot-stage atomic force microscopy (2020) · cites this paper as [35]

    The SAXS characterization section proposes a morphology with three types of crystalline lamellae, and the Morphology section reports SAXS evidence for a complex triple-lamellar structure. Our copy does not support the claimed use of AFM observations or theoretical simulations: it describes polarized-light microscopy and rough theoretical calculations of melt miscibility instead. Page numbers are unavailable in the indexed copy. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • During the final cooling to 25 °C, the PEO block can crystallize, forming the thinnest lamellae of the three components.

    “Finally, the sample was quenched to 25 ºC at 100 ºC min -1 (during this cooling, the PEO block can crystallize 35 , forming the thinnest lamellae of the three components).”

    From Direct identification of three crystalline phases in PEO-b-PCL-b-PLLA triblock terpolymer by In situ hot-stage atomic force microscopy (2020) · cites this paper as [35]

    The Morphology section reports that PEO can crystallize after a final quench to room temperature, supporting the cooling portion of the claim. It describes three types of lamellae but does not say that PEO forms the thinnest; a search for comparative lamellar thickness found no such statement in our copy. Page numbers were not available. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • PEO23PCL34PLLA43 is melt miscible.

    “the SAXS analysis proved the melt miscibility.”

    From Direct identification of three crystalline phases in PEO-b-PCL-b-PLLA triblock terpolymer by In situ hot-stage atomic force microscopy (2020) · cites this paper as [35]

    In the SAXS characterization section (page not available), the authors report that PEO23PCL34PLLA43 had a broad, weak reflection at 140 °C and conclude that the terpolymers are “most likely miscible in the melt.” The SAXS analysis supports melt miscibility, but the citing sentence overstates that qualified conclusion as proof. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Upon cooling from the melt, PLLA crystallizes first, creating a spherulitic superstructural template.

    “Upon cooling from melt, PLOM and WAXS experiments confirmed that PLLA crystallizes first, creating a spherulitic superstructural template.”

    From Direct identification of three crystalline phases in PEO-b-PCL-b-PLLA triblock terpolymer by In situ hot-stage atomic force microscopy (2020) · cites this paper as [35]

    The WAXS results say PLLA crystallizes first, and the Conclusions say its crystallization templates the morphology upon cooling from the melt. However, the Conclusions also report that PLOM shows a composition-dependent shape: the template is spherulite-like at higher PLLA content but resembles axialites at lower PLLA content. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

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Cites

Flagged first, then by citations

1 of the 61 references couldn’t be matched to a known paper.

Research works printed but not linked: 4

  1. A. J. Müller , M. L.Arnal and A. T.Lorenzo, in Handbook of Polymer Crystallization, ed. E. Piorkowska and G. C. Rutledge, John Wiley and Sons, Hoboken, New Jersey, 2013, ch. 12, pp. 347–372
  2. Hamley, 2004, Prog. Polym. Sci., 29, 909
  3. A. J. Muller , M.Avila, G.Saenz and J.Salazar, in Poly(lactic acid) Science and Technology: Processing, Properties, Additives and Applications, ed. A. Jimenez, M. Peltzer and R. Ruseckaite, The Royal Society of Chemistry, Cambridge, 2015, vol. 12, ch. 3, pp. 66–98
  4. B. Crist , in Handbook of Polymer Crystallization, ed. E. Piorkowska and G. C. Rutledge, John Wiley and Sons, Hoboken, New Jersey, 2013, ch. 3, pp. 73–123

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Authors
Palacios, J. K., Mugica, A., Zubitur, M., Iturrospe, A., Arbe, A., Liu, G., Wang, D., Zhao, J., Hadjichristidis, N., & Müller, A. J.
Affiliations
  • University of the Basque Country (ES)
  • POLYMAT and Polymer Science and Technology Department
  • Material Physics Center (ES)
  • Chinese Academy of Sciences (CN)
  • King Abdullah University of Science and Technology (SA)
  • Ikerbasque (ES)
Corresponding author
  • Hadjichristidis, Nikos
  • Müller, Alejandro J.
Venue
RSC Advances
Published
2016
Volume
6
Issue
6
Pages
4739-4750
ISSN
2046-2069 (ISSN-L)
OpenAlex
W2228175695
Cited by
23
References
61
Citations by year
2026: 1 · 2025: 1 · 2023: 1 · 2022: 4 · 2021: 3 · 2020: 1 · 2019: 4 · 2018: 2 · 2017: 5 · 2016: 1
FWCI
2.67
Type
journal article
Language
en
Open access
Locations
  • RSC Advances (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, other-oa)
  • King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology) (submittedVersion)
Funders
Eusko Jaurlaritza (GIC IT-586-13)
Topics
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Materials Science › Materials Chemistry › Block Copolymer Self-Assembly
Keywords
sequential crystallization, triblock terpolymers, poly(ethylene oxide), polycaprolactone, poly(L-lactic acid), biodegradable polymers, polymer morphology, block copolymers, melt crystallization

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