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Title: Using Janus Nanoparticles To Trap Polymer Blend Morphologies during Solvent-Evaporation-Induced Demixing

Abstract

Using ternary blends of polystyrene (PS), poly(methyl methacrylate) (PMMA), and Janus particles (JPs) with symmetric PS and PMMA hemispheres, we demonstrate the stabilization of dispersed and bicontinuous phase-separated morphologies by the interfacial adsorption of Janus particles during demixing upon solvent removal. The resulting blend morphology could be varied by changing the blend composition and JP loading. Increasing particle loading decreased the size of phase-separated domains, while altering the mixing ratio of the PS/PMMA homopolymers produced morphologies ranging from PMMA droplets in a PS matrix to PS droplets in a PMMA matrix. Notably, bicontinuous morphologies were obtained at intermediate blend compositions, marking the first report of highly continuous domains obtained through demixing in a polymer blend compatibilized by Janus particles. The JPs were found to assemble in a densely packed monolayer at the interface, allowing for the stabilization of bicontinuous morphologies in films above the glass transition temperature by inhibiting coarsening and coalescence of the phase-separated domains. In conclusion, the rate of solvent evaporation from the drop-cast films and the molecular weights of the homopolymers were found to greatly affect blend morphology.

Authors:
 [1];  [2];  [3];  [1];  [1]
+ Show Author Affiliations
  1. Univ. of Massachusetts, Amherst, MA (United States)
  2. Univ. Bayreuth, Bayreuth (Germany)
  3. Univ. Bayreuth, Bayreuth (Germany); Johannes Gutenberg Univ. Mainz, Mainz (Germany)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC), Washington, D.C. (United States). Polymer-Based Materials for Harvesting Solar Energy (PHaSE)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1370311
Grant/Contract Number:  
SC0001087
Resource Type:
Accepted Manuscript
Journal Name:
Macromolecules
Additional Journal Information:
Journal Volume: 48; Journal Issue: 12; Related Information: PHaSE partners with University of Massachusetts, Amherst (lead) and Lowell; Oak Ridge National Laboratory; Pennsylvania State University; Renssalaer Polytechnic Institute; University of Pittsburgh; Journal ID: ISSN 0024-9297
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Bryson, Kyle C., Lobling, Tina I., Muller, Axel H. E., Russell, Thomas P., and Hayward, Ryan C. Using Janus Nanoparticles To Trap Polymer Blend Morphologies during Solvent-Evaporation-Induced Demixing. United States: N. p., 2015. Web. doi:10.1021/acs.macromol.5b00640.
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Bryson, Kyle C., Lobling, Tina I., Muller, Axel H. E., Russell, Thomas P., & Hayward, Ryan C. Using Janus Nanoparticles To Trap Polymer Blend Morphologies during Solvent-Evaporation-Induced Demixing. United States. https://doi.org/10.1021/acs.macromol.5b00640
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Bryson, Kyle C., Lobling, Tina I., Muller, Axel H. E., Russell, Thomas P., and Hayward, Ryan C. Sun . "Using Janus Nanoparticles To Trap Polymer Blend Morphologies during Solvent-Evaporation-Induced Demixing". United States. https://doi.org/10.1021/acs.macromol.5b00640. https://www.osti.gov/servlets/purl/1370311.
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@article{osti_1370311,
title = {Using Janus Nanoparticles To Trap Polymer Blend Morphologies during Solvent-Evaporation-Induced Demixing},
author = {Bryson, Kyle C. and Lobling, Tina I. and Muller, Axel H. E. and Russell, Thomas P. and Hayward, Ryan C.},
abstractNote = {Using ternary blends of polystyrene (PS), poly(methyl methacrylate) (PMMA), and Janus particles (JPs) with symmetric PS and PMMA hemispheres, we demonstrate the stabilization of dispersed and bicontinuous phase-separated morphologies by the interfacial adsorption of Janus particles during demixing upon solvent removal. The resulting blend morphology could be varied by changing the blend composition and JP loading. Increasing particle loading decreased the size of phase-separated domains, while altering the mixing ratio of the PS/PMMA homopolymers produced morphologies ranging from PMMA droplets in a PS matrix to PS droplets in a PMMA matrix. Notably, bicontinuous morphologies were obtained at intermediate blend compositions, marking the first report of highly continuous domains obtained through demixing in a polymer blend compatibilized by Janus particles. The JPs were found to assemble in a densely packed monolayer at the interface, allowing for the stabilization of bicontinuous morphologies in films above the glass transition temperature by inhibiting coarsening and coalescence of the phase-separated domains. In conclusion, the rate of solvent evaporation from the drop-cast films and the molecular weights of the homopolymers were found to greatly affect blend morphology.},
doi = {10.1021/acs.macromol.5b00640},
journal = {Macromolecules},
number = 12,
volume = 48,
place = {United States},
year = {Sun Jun 14 00:00:00 EDT 2015},
month = {Sun Jun 14 00:00:00 EDT 2015}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1021/acs.macromol.5b00640
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Cited by: 69 works
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Figures / Tables:

Figure 1 Figure 1: (a) Schematic representation of the structure of the SBM JPs, with cross-linked PB cores (black) and PS (blue) and PMMA (red) grafted chains. (b) Schematic representation of the assembly of the SBM JPs at the PS/PMMA interface.
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    Works referencing / citing this record:

    Janus particles: from synthesis to application
    journal, September 2017

    Fabrication of Nano-Sized Hybrid Janus Particles from Strawberry-Like Hierarchical Composites
    journal, September 2018

    • Yang, Qiuyan; Miao, Xiaoming; Loos, Katja
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    Amphiphilic Janus nanosheets by grafting reactive rubber brushes for reinforced rubber materials
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    Interfacial aggregation of Janus rods in binary polymer blends and their effect on phase separation
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    • Paiva, F.; Boromand, A.; Maia, J.
    • The Journal of Chemical Physics, Vol. 151, Issue 11
    • DOI: 10.1063/1.5100134

    Distinctive phase separation dynamics of polymer blends: roles of Janus nanoparticles
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    • Li, Qing; Wang, Liquan; Lin, Jiaping
    • Physical Chemistry Chemical Physics, Vol. 21, Issue 5
    • DOI: 10.1039/c8cp06431h

    Janus nanoparticles inside polymeric materials: interfacial arrangement toward functional hybrid materials
    journal, January 2017

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