Phase behavior of a block copolymer/salt mixture through the order-to-disorder transition

Jacob L. Thelen, Alexander A. Teran, Xin Wang, Bruce Garetz, Issei Nakamura, Zhen Gang Wang, Nitash P. Balsara

Research output: Contribution to journalArticle

Abstract

Mixtures of block copolymers and lithium salts are promising candidates for lithium battery electrolytes. Structural changes that occur during the order-to-disorder transition (ODT) in a diblock copolymer/salt mixture were characterized by small-angle X-ray scattering (SAXS). In salt-free block copolymers, the ODT is sharp, and the domain size of the ordered phase decreases with increasing temperature. In contrast, the ODT of the diblock copolymer/salt mixture examined here occurs gradually over an 11 °C temperature window, and the domain size of the ordered phase is a nonmonotonic function of temperature. We present an approach to estimate the fraction of the ordered phase in the 11 °C window where ordered and disordered phases coexist. The domain spacing of the ordered phase increases with increasing temperature in the coexistence window. Both findings are consistent with the selective partitioning of salt into the ordered domains, as predicted by Nakamura et al. (ACS Macro Lett. 2013, 2, 478-481).

Original languageEnglish (US)
Pages (from-to)2666-2673
Number of pages8
JournalMacromolecules
Volume47
Issue number8
DOIs
StatePublished - Apr 22 2014

Fingerprint

Phase behavior
Block copolymers
Salts
Temperature
Lithium batteries
X ray scattering
Lithium
Electrolytes
Macros

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry

Cite this

Thelen, J. L., Teran, A. A., Wang, X., Garetz, B., Nakamura, I., Wang, Z. G., & Balsara, N. P. (2014). Phase behavior of a block copolymer/salt mixture through the order-to-disorder transition. Macromolecules, 47(8), 2666-2673. https://doi.org/10.1021/ma500292n

Phase behavior of a block copolymer/salt mixture through the order-to-disorder transition. / Thelen, Jacob L.; Teran, Alexander A.; Wang, Xin; Garetz, Bruce; Nakamura, Issei; Wang, Zhen Gang; Balsara, Nitash P.

In: Macromolecules, Vol. 47, No. 8, 22.04.2014, p. 2666-2673.

Research output: Contribution to journalArticle

Thelen, JL, Teran, AA, Wang, X, Garetz, B, Nakamura, I, Wang, ZG & Balsara, NP 2014, 'Phase behavior of a block copolymer/salt mixture through the order-to-disorder transition', Macromolecules, vol. 47, no. 8, pp. 2666-2673. https://doi.org/10.1021/ma500292n
Thelen, Jacob L. ; Teran, Alexander A. ; Wang, Xin ; Garetz, Bruce ; Nakamura, Issei ; Wang, Zhen Gang ; Balsara, Nitash P. / Phase behavior of a block copolymer/salt mixture through the order-to-disorder transition. In: Macromolecules. 2014 ; Vol. 47, No. 8. pp. 2666-2673.
@article{8ac86e5aedd6430282e3bd6ab269f3c3,
title = "Phase behavior of a block copolymer/salt mixture through the order-to-disorder transition",
abstract = "Mixtures of block copolymers and lithium salts are promising candidates for lithium battery electrolytes. Structural changes that occur during the order-to-disorder transition (ODT) in a diblock copolymer/salt mixture were characterized by small-angle X-ray scattering (SAXS). In salt-free block copolymers, the ODT is sharp, and the domain size of the ordered phase decreases with increasing temperature. In contrast, the ODT of the diblock copolymer/salt mixture examined here occurs gradually over an 11 °C temperature window, and the domain size of the ordered phase is a nonmonotonic function of temperature. We present an approach to estimate the fraction of the ordered phase in the 11 °C window where ordered and disordered phases coexist. The domain spacing of the ordered phase increases with increasing temperature in the coexistence window. Both findings are consistent with the selective partitioning of salt into the ordered domains, as predicted by Nakamura et al. (ACS Macro Lett. 2013, 2, 478-481).",
author = "Thelen, {Jacob L.} and Teran, {Alexander A.} and Xin Wang and Bruce Garetz and Issei Nakamura and Wang, {Zhen Gang} and Balsara, {Nitash P.}",
year = "2014",
month = "4",
day = "22",
doi = "10.1021/ma500292n",
language = "English (US)",
volume = "47",
pages = "2666--2673",
journal = "Macromolecules",
issn = "0024-9297",
publisher = "American Chemical Society",
number = "8",

}

TY - JOUR

T1 - Phase behavior of a block copolymer/salt mixture through the order-to-disorder transition

AU - Thelen, Jacob L.

AU - Teran, Alexander A.

AU - Wang, Xin

AU - Garetz, Bruce

AU - Nakamura, Issei

AU - Wang, Zhen Gang

AU - Balsara, Nitash P.

PY - 2014/4/22

Y1 - 2014/4/22

N2 - Mixtures of block copolymers and lithium salts are promising candidates for lithium battery electrolytes. Structural changes that occur during the order-to-disorder transition (ODT) in a diblock copolymer/salt mixture were characterized by small-angle X-ray scattering (SAXS). In salt-free block copolymers, the ODT is sharp, and the domain size of the ordered phase decreases with increasing temperature. In contrast, the ODT of the diblock copolymer/salt mixture examined here occurs gradually over an 11 °C temperature window, and the domain size of the ordered phase is a nonmonotonic function of temperature. We present an approach to estimate the fraction of the ordered phase in the 11 °C window where ordered and disordered phases coexist. The domain spacing of the ordered phase increases with increasing temperature in the coexistence window. Both findings are consistent with the selective partitioning of salt into the ordered domains, as predicted by Nakamura et al. (ACS Macro Lett. 2013, 2, 478-481).

AB - Mixtures of block copolymers and lithium salts are promising candidates for lithium battery electrolytes. Structural changes that occur during the order-to-disorder transition (ODT) in a diblock copolymer/salt mixture were characterized by small-angle X-ray scattering (SAXS). In salt-free block copolymers, the ODT is sharp, and the domain size of the ordered phase decreases with increasing temperature. In contrast, the ODT of the diblock copolymer/salt mixture examined here occurs gradually over an 11 °C temperature window, and the domain size of the ordered phase is a nonmonotonic function of temperature. We present an approach to estimate the fraction of the ordered phase in the 11 °C window where ordered and disordered phases coexist. The domain spacing of the ordered phase increases with increasing temperature in the coexistence window. Both findings are consistent with the selective partitioning of salt into the ordered domains, as predicted by Nakamura et al. (ACS Macro Lett. 2013, 2, 478-481).

UR - http://www.scopus.com/inward/record.url?scp=84899462893&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84899462893&partnerID=8YFLogxK

U2 - 10.1021/ma500292n

DO - 10.1021/ma500292n

M3 - Article

AN - SCOPUS:84899462893

VL - 47

SP - 2666

EP - 2673

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 8

ER -