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Title: Bulk and Surface Morphologies of ABC Miktoarm Star Terpolymers Composed of PDMS, PI, and PMMA Arms

Abstract

DIM miktoarm star copolymers, composed of polydimethylsiloxane [D], poly(1,4-isoprene) [I], and poly(methyl methacrylate) [M], were synthesized using a newly developed linking methodology with 4-allyl-1,1-diphenylethylene as a linking agent. The equilibrium bulk morphologies of the DIM stars were found to range from [6.6.6] tiling patterns to alternating lamellar and alternating cylindrical morphologies, as determined experimentally by small-angle X-ray scattering and transmission electron microscopy and confirmed by dissipative particle dynamics and self-consistent field theory based arguments. The thin film morphologies, which differ from those found in the bulk, were identified by scanning electron microscopy, coupled with oxygen plasma etching. Finally, square arrays of the PDMS nanodots and empty core cylinders were formed on silica after oxygen plasma removal of the poly(1,4-isoprene) and poly(methyl methacrylate) which generated nanostructured substrates decorated with these features readily observable.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [4]; ORCiD logo [5]; ORCiD logo [3]; ORCiD logo [3];  [5]; ORCiD logo [2]; ORCiD logo [4];  [6]
  1. Technical Univ. of Denmark, Lyngby (Denmark). DTU Nanotech
  2. Univ. of Copenhagen (Denmark). The Niels Bohr Inst.
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Computational Sciences and Engineering Division
  4. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Polymer Science and Engineering
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division
  6. Technical Univ. of Denmark, Lyngby (Denmark). DTU Nanotech
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1430603
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Macromolecules
Additional Journal Information:
Journal Volume: 51; Journal Issue: 3; Journal ID: ISSN 0024-9297
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Chernyy, Sergey, Kirkensgaard, Jacob Judas Kain, Mahalik, Jyoti P., Kim, Hyeyoung, Arras, Matthias M. L., Kumar, Rajeev, Sumpter, Bobby G., Smith, Gregory S., Mortensen, Kell, Russell, Thomas P., and Almdal, Kristoffer. Bulk and Surface Morphologies of ABC Miktoarm Star Terpolymers Composed of PDMS, PI, and PMMA Arms. United States: N. p., 2018. Web. doi:10.1021/acs.macromol.7b02485.
Chernyy, Sergey, Kirkensgaard, Jacob Judas Kain, Mahalik, Jyoti P., Kim, Hyeyoung, Arras, Matthias M. L., Kumar, Rajeev, Sumpter, Bobby G., Smith, Gregory S., Mortensen, Kell, Russell, Thomas P., & Almdal, Kristoffer. Bulk and Surface Morphologies of ABC Miktoarm Star Terpolymers Composed of PDMS, PI, and PMMA Arms. United States. doi:10.1021/acs.macromol.7b02485.
Chernyy, Sergey, Kirkensgaard, Jacob Judas Kain, Mahalik, Jyoti P., Kim, Hyeyoung, Arras, Matthias M. L., Kumar, Rajeev, Sumpter, Bobby G., Smith, Gregory S., Mortensen, Kell, Russell, Thomas P., and Almdal, Kristoffer. Fri . "Bulk and Surface Morphologies of ABC Miktoarm Star Terpolymers Composed of PDMS, PI, and PMMA Arms". United States. doi:10.1021/acs.macromol.7b02485. https://www.osti.gov/servlets/purl/1430603.
@article{osti_1430603,
title = {Bulk and Surface Morphologies of ABC Miktoarm Star Terpolymers Composed of PDMS, PI, and PMMA Arms},
author = {Chernyy, Sergey and Kirkensgaard, Jacob Judas Kain and Mahalik, Jyoti P. and Kim, Hyeyoung and Arras, Matthias M. L. and Kumar, Rajeev and Sumpter, Bobby G. and Smith, Gregory S. and Mortensen, Kell and Russell, Thomas P. and Almdal, Kristoffer},
abstractNote = {DIM miktoarm star copolymers, composed of polydimethylsiloxane [D], poly(1,4-isoprene) [I], and poly(methyl methacrylate) [M], were synthesized using a newly developed linking methodology with 4-allyl-1,1-diphenylethylene as a linking agent. The equilibrium bulk morphologies of the DIM stars were found to range from [6.6.6] tiling patterns to alternating lamellar and alternating cylindrical morphologies, as determined experimentally by small-angle X-ray scattering and transmission electron microscopy and confirmed by dissipative particle dynamics and self-consistent field theory based arguments. The thin film morphologies, which differ from those found in the bulk, were identified by scanning electron microscopy, coupled with oxygen plasma etching. Finally, square arrays of the PDMS nanodots and empty core cylinders were formed on silica after oxygen plasma removal of the poly(1,4-isoprene) and poly(methyl methacrylate) which generated nanostructured substrates decorated with these features readily observable.},
doi = {10.1021/acs.macromol.7b02485},
journal = {Macromolecules},
number = 3,
volume = 51,
place = {United States},
year = {2018},
month = {2}
}

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Figures / Tables:

Figure 1 Figure 1: Generic phase diagram based on simulation predictions under the constraint of two arms (green A and blue B) having equal volumes while the third arm (red C) is varied.20-23,44 The parameter x is the fractional length of C relative to A. The tiling patterns are labeled by amore » set of numbers [k1.k2.k3] indicating that three polygons (k1-gon, k2-gon, k3-gon) meet at every vertex and repeat in a cyclic order. Tilings with more than one topologically distinct vertex are denoted [k1.k2.k3; k4.k5.k6].44« less

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