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Title: An unusual type of polymorphism in a liquid crystal

Abstract

Polymorphism is a remarkable concept in chemistry, materials science, computer science, and biology. Whether it is the ability of a material to exist in two or more crystal structures, a single interface connecting to two different entities, or alternative phenotypes of an organism, polymorphism determines function and properties. In materials science, polymorphism can be found in an impressively wide range of materials, including crystalline materials, minerals, metals, alloys, and polymers. Here in this paper we report on polymorphism in a liquid crystal. A bent-core liquid crystal with a single chiral side chain forms two structurally and morphologically significantly different liquid crystal phases solely depending on the cooling rate from the isotropic liquid state. On slow cooling, the thermodynamically more stable oblique columnar phase forms, and on rapid cooling, a not heretofore reported helical microfilament phase. Since structure determines function and properties, the structural color for these phases also differs.

Authors:
 [1]; ORCiD logo [2];  [3];  [2];  [3]; ORCiD logo [4]
  1. Kent State Univ., Kent, OH (United States). Dept. of Chemistry and Biochemistry
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  3. Kent State Univ., Kent, OH (United States). Liquid Crystal Inst., Chemical Physics Interdisciplinary Program
  4. Kent State Univ., Kent, OH (United States). Dept. of Chemistry and Biochemistry; Kent State Univ., Kent, OH (United States). Liquid Crystal Inst., Chemical Physics Interdisciplinary Program
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1433130
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Li, Lin, Salamonczyk, Miroslaw, Shadpour, Sasan, Zhu, Chenhui, Jakli, Antal, and Hegmann, Torsten. An unusual type of polymorphism in a liquid crystal. United States: N. p., 2018. Web. doi:10.1038/s41467-018-03160-9.
Li, Lin, Salamonczyk, Miroslaw, Shadpour, Sasan, Zhu, Chenhui, Jakli, Antal, & Hegmann, Torsten. An unusual type of polymorphism in a liquid crystal. United States. doi:10.1038/s41467-018-03160-9.
Li, Lin, Salamonczyk, Miroslaw, Shadpour, Sasan, Zhu, Chenhui, Jakli, Antal, and Hegmann, Torsten. Mon . "An unusual type of polymorphism in a liquid crystal". United States. doi:10.1038/s41467-018-03160-9. https://www.osti.gov/servlets/purl/1433130.
@article{osti_1433130,
title = {An unusual type of polymorphism in a liquid crystal},
author = {Li, Lin and Salamonczyk, Miroslaw and Shadpour, Sasan and Zhu, Chenhui and Jakli, Antal and Hegmann, Torsten},
abstractNote = {Polymorphism is a remarkable concept in chemistry, materials science, computer science, and biology. Whether it is the ability of a material to exist in two or more crystal structures, a single interface connecting to two different entities, or alternative phenotypes of an organism, polymorphism determines function and properties. In materials science, polymorphism can be found in an impressively wide range of materials, including crystalline materials, minerals, metals, alloys, and polymers. Here in this paper we report on polymorphism in a liquid crystal. A bent-core liquid crystal with a single chiral side chain forms two structurally and morphologically significantly different liquid crystal phases solely depending on the cooling rate from the isotropic liquid state. On slow cooling, the thermodynamically more stable oblique columnar phase forms, and on rapid cooling, a not heretofore reported helical microfilament phase. Since structure determines function and properties, the structural color for these phases also differs.},
doi = {10.1038/s41467-018-03160-9},
journal = {Nature Communications},
number = 1,
volume = 9,
place = {United States},
year = {2018},
month = {2}
}

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