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Upper critical solution temperature polymer assemblies via variable temperature liquid phase transmission electron microscopy and liquid resonant soft X-ray scattering

Author

Listed:
  • Joanna Korpanty

    (Northwestern University)

  • Cheng Wang

    (Lawrence Berkeley National Laboratory)

  • Nathan C. Gianneschi

    (Northwestern University
    Northwestern University
    Northwestern University)

Abstract

Here, we study the upper critical solution temperature triggered phase transition of thermally responsive poly(ethylene glycol)-block-poly(ethylene glycol) methyl ether acrylate-co-poly(ethylene glycol) phenyl ether acrylate-block-polystyrene nanoassemblies in isopropanol. To gain mechanistic insight into the organic solution-phase dynamics of the upper critical solution temperature polymer, we leverage variable temperature liquid-cell transmission electron microscopy correlated with variable temperature liquid resonant soft X-ray scattering. Heating above the upper critical solution temperature triggers a reduction in particle size and a morphological transition from a spherical core shell particle with a complex, multiphase core to a micelle with a uniform core and Gaussian polymer chains attached to the surface. These correlated solution phase methods, coupled with mass spectral validation and modeling, provide unique insight into these thermoresponsive materials. Moreover, we detail a generalizable workflow for studying complex, solution-phase nanomaterials via correlative methods.

Suggested Citation

  • Joanna Korpanty & Cheng Wang & Nathan C. Gianneschi, 2023. "Upper critical solution temperature polymer assemblies via variable temperature liquid phase transmission electron microscopy and liquid resonant soft X-ray scattering," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-38781-2
    DOI: 10.1038/s41467-023-38781-2
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    References listed on IDEAS

    as
    1. E. Sutter & K. Jungjohann & S. Bliznakov & A. Courty & E. Maisonhaute & S. Tenney & P. Sutter, 2014. "In situ liquid-cell electron microscopy of silver–palladium galvanic replacement reactions on silver nanoparticles," Nature Communications, Nature, vol. 5(1), pages 1-9, December.
    2. Terry McAfee & Thomas Ferron & Isvar A. Cordova & Phillip D. Pickett & Charles L. McCormick & Cheng Wang & Brian A. Collins, 2021. "Label-free characterization of organic nanocarriers reveals persistent single molecule cores for hydrocarbon sequestration," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    3. Mollie A. Touve & Andrea S. Carlini & Nathan C. Gianneschi, 2019. "Self-assembling peptides imaged by correlated liquid cell transmission electron microscopy and MALDI-imaging mass spectrometry," Nature Communications, Nature, vol. 10(1), pages 1-12, December.
    4. Joanna Korpanty & Lucas R. Parent & Nicholas Hampu & Steven Weigand & Nathan C. Gianneschi, 2021. "Thermoresponsive polymer assemblies via variable temperature liquid-phase transmission electron microscopy and small angle X-ray scattering," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
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