Journal
POLYMERS
Volume 14, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/polym14142823
Keywords
bent-core molecules; polymers; chirality; liquid crystals; circular dichroism
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Funding
- National Research Foundation of Korea [NRF2022R1A2C1005620, NRF-2022K2A9A2A08000179, NRF-2020R1A6A1A03048004]
- Ministry of Education [2019R1A6C1010052]
- National Research Foundation of Korea [2022K2A9A2A08000179] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This paper investigates a binary mixture system composed of achiral bent-core molecules and bent-core base main-chain polymers, and identifies an intriguing nanosegregated phase with significant structural chirality effect.
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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