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Catalyst switch strategy enabled a single polymer with five different crystalline phases

Author

Listed:
  • Pengfei Zhang

    (King Abdullah University of Science and Technology (KAUST))

  • Viko Ladelta

    (King Abdullah University of Science and Technology (KAUST))

  • Edy Abou-hamad

    (King Abdullah University of Science and Technology (KAUST))

  • Alejandro J. Müller

    (University of the Basque Country UPV/EHU)

  • Nikos Hadjichristidis

    (King Abdullah University of Science and Technology (KAUST))

Abstract

Well-defined multicrystalline multiblock polymers are essential model polymers for advancing crystallization physics, phase separation, self-assembly, and improving the mechanical properties of materials. However, due to different chain properties and incompatible synthetic methodologies, multicrystalline multiblock polymers with more than two crystallites are rarely reported. Herein, by combining polyhomologation, ring-opening polymerization, and catalyst switch strategy, we synthesized a pentacrystalline pentablock quintopolymer, polyethylene-b-poly(ethylene oxide)-b-poly(ε-caprolactone)-b-poly(L-lactide)-b-polyglycolide (PE-b-PEO-b-PCL-b-PLLA-b-PGA). The fluoroalcohol-assisted catalyst switch enables the successful incorporation of a high melting point polyglycolide block into the complex multiblock structure. Solid-state nuclear magnetic resonance spectroscopy, X-ray diffraction, and differential scanning calorimetry revealed the existence of five different crystalline phases.

Suggested Citation

  • Pengfei Zhang & Viko Ladelta & Edy Abou-hamad & Alejandro J. Müller & Nikos Hadjichristidis, 2023. "Catalyst switch strategy enabled a single polymer with five different crystalline phases," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-42955-3
    DOI: 10.1038/s41467-023-42955-3
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    References listed on IDEAS

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    1. Adrian Ramirez & Xuan Gong & Mustafa Caglayan & Stefan-Adrian F. Nastase & Edy Abou-Hamad & Lieven Gevers & Luigi Cavallo & Abhishek Dutta Chowdhury & Jorge Gascon, 2021. "Selectivity descriptors for the direct hydrogenation of CO2 to hydrocarbons during zeolite-mediated bifunctional catalysis," Nature Communications, Nature, vol. 12(1), pages 1-13, December.
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