Chiroptical Characteristics of Nanosegregated Phases in Binary Mixture Consisting of Achiral Bent-Core Molecule and Bent-Core Base Main-Chain Polymer

In this paper, a binary mixture system consisting of an achiral bent-core molecule and a bent-core base main-chain polymer is described. The mixture exhibits an intriguing nanosegregated phase generated by the phase separation of the helical nanofilament B4 phase (originating from the bent-core mole...

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Main Authors: Ju-Yong Kim, Jae-Jin Lee, Suk-Won Choi
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/14/2823
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author Ju-Yong Kim
Jae-Jin Lee
Suk-Won Choi
author_facet Ju-Yong Kim
Jae-Jin Lee
Suk-Won Choi
author_sort Ju-Yong Kim
collection DOAJ
description In this paper, a binary mixture system consisting of an achiral bent-core molecule and a bent-core base main-chain polymer is described. The mixture exhibits an intriguing nanosegregated phase generated by the phase separation of the helical nanofilament B4 phase (originating from the bent-core molecule) and the dark conglomerate phase (originating from the bent-core base main-chain polymer). This nanosegregated phase was identified using polarized optical microscopy, differential scanning calorimetry, and X-ray diffraction analysis. In this nanosegregated phase, the enantiomeric domains grew to a few millimeters and a giant circular dichroism was observed. The structural chirality of the helical nanofilament B4 phase affected the conformation of the bent-core base main-chain polymer embedded within the helical nanofilament networks of bent-core molecules.
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spelling doaj.art-755aa146edf44415abab5fb46d31f5bd2023-12-03T12:07:40ZengMDPI AGPolymers2073-43602022-07-011414282310.3390/polym14142823Chiroptical Characteristics of Nanosegregated Phases in Binary Mixture Consisting of Achiral Bent-Core Molecule and Bent-Core Base Main-Chain PolymerJu-Yong Kim0Jae-Jin Lee1Suk-Won Choi2Department of Advanced Materials Engineering for Information & Electronics, Integrated Education Institute for Frontier Science & Technology (BK21 Four), Kyung Hee University, Yongin 17104, KoreaDepartment of Advanced Materials Engineering for Information & Electronics, Integrated Education Institute for Frontier Science & Technology (BK21 Four), Kyung Hee University, Yongin 17104, KoreaDepartment of Advanced Materials Engineering for Information & Electronics, Integrated Education Institute for Frontier Science & Technology (BK21 Four), Kyung Hee University, Yongin 17104, KoreaIn this paper, a binary mixture system consisting of an achiral bent-core molecule and a bent-core base main-chain polymer is described. The mixture exhibits an intriguing nanosegregated phase generated by the phase separation of the helical nanofilament B4 phase (originating from the bent-core molecule) and the dark conglomerate phase (originating from the bent-core base main-chain polymer). This nanosegregated phase was identified using polarized optical microscopy, differential scanning calorimetry, and X-ray diffraction analysis. In this nanosegregated phase, the enantiomeric domains grew to a few millimeters and a giant circular dichroism was observed. The structural chirality of the helical nanofilament B4 phase affected the conformation of the bent-core base main-chain polymer embedded within the helical nanofilament networks of bent-core molecules.https://www.mdpi.com/2073-4360/14/14/2823bent-core moleculespolymerschiralityliquid crystalscircular dichroism
spellingShingle Ju-Yong Kim
Jae-Jin Lee
Suk-Won Choi
Chiroptical Characteristics of Nanosegregated Phases in Binary Mixture Consisting of Achiral Bent-Core Molecule and Bent-Core Base Main-Chain Polymer
Polymers
bent-core molecules
polymers
chirality
liquid crystals
circular dichroism
title Chiroptical Characteristics of Nanosegregated Phases in Binary Mixture Consisting of Achiral Bent-Core Molecule and Bent-Core Base Main-Chain Polymer
title_full Chiroptical Characteristics of Nanosegregated Phases in Binary Mixture Consisting of Achiral Bent-Core Molecule and Bent-Core Base Main-Chain Polymer
title_fullStr Chiroptical Characteristics of Nanosegregated Phases in Binary Mixture Consisting of Achiral Bent-Core Molecule and Bent-Core Base Main-Chain Polymer
title_full_unstemmed Chiroptical Characteristics of Nanosegregated Phases in Binary Mixture Consisting of Achiral Bent-Core Molecule and Bent-Core Base Main-Chain Polymer
title_short Chiroptical Characteristics of Nanosegregated Phases in Binary Mixture Consisting of Achiral Bent-Core Molecule and Bent-Core Base Main-Chain Polymer
title_sort chiroptical characteristics of nanosegregated phases in binary mixture consisting of achiral bent core molecule and bent core base main chain polymer
topic bent-core molecules
polymers
chirality
liquid crystals
circular dichroism
url https://www.mdpi.com/2073-4360/14/14/2823
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