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Title: Scalable Synthesis of Cholesteric Glassy Liquid Crystals

Capable of non-absorbing circular polarization of unpolarized incident light, cholesteric glassy liquid crystals consisting of hybrid chiral-nematic pendants to volume-excluding cores are potentially useful for the fabrication of various robust optical devices. As illustrated in this study, the well-oriented glassy film of enantiomeric Bz3ChN, with a glass transition at 73 °C and a cholesteric-to-isotropic transition at 295 °C, exhibits a selective reflection band centered at approximately 410 nm, an exceptional set of properties well suited for optical device exploration. To enable sustainable, large-scale synthesis of this material class for widespread applications, a productive strategy has been established, requiring a mere three-step scheme with an overall yield, atom economy, and reaction mass efficiency at 34%, 33% and 12%, respectively. Lastly, while amenable to improvements, the resultant green chemistry metrics are encouraging as the first attempt.
Authors:
 [1] ; ORCiD logo [2] ;  [3] ; ORCiD logo [4]
  1. D’Youville College, Buffalo, NY (United States). Dept. of Chemistry; Univ. of Rochester, NY (United States). Dept. of Chemical Engineering
  2. Univ. of Rochester, NY (United States). Dept. of Chemical Engineering
  3. Univ. of Rochester, NY (United States). Lab. for Laser Energetics; Univ. of Rochester, NY (United States). Dept. of Chemical Engineering
  4. Univ. of Rochester, NY (United States). Dept. of Chemical Engineering; Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Publication Date:
Report Number(s):
2018-14; 14-04
Journal ID: ISSN 0888-5885; 2018-14, 1404, 2360
Grant/Contract Number:
NA0001944
Type:
Accepted Manuscript
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 57; Journal Issue: 12; Journal ID: ISSN 0888-5885
Publisher:
American Chemical Society (ACS)
Research Org:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE
OSTI Identifier:
1437580

Wallace, Jason U., Shestopalov, Alexander, Kosc, Tanya, and Chen, Shaw H.. Scalable Synthesis of Cholesteric Glassy Liquid Crystals. United States: N. p., Web. doi:10.1021/acs.iecr.8b00667.
Wallace, Jason U., Shestopalov, Alexander, Kosc, Tanya, & Chen, Shaw H.. Scalable Synthesis of Cholesteric Glassy Liquid Crystals. United States. doi:10.1021/acs.iecr.8b00667.
Wallace, Jason U., Shestopalov, Alexander, Kosc, Tanya, and Chen, Shaw H.. 2018. "Scalable Synthesis of Cholesteric Glassy Liquid Crystals". United States. doi:10.1021/acs.iecr.8b00667.
@article{osti_1437580,
title = {Scalable Synthesis of Cholesteric Glassy Liquid Crystals},
author = {Wallace, Jason U. and Shestopalov, Alexander and Kosc, Tanya and Chen, Shaw H.},
abstractNote = {Capable of non-absorbing circular polarization of unpolarized incident light, cholesteric glassy liquid crystals consisting of hybrid chiral-nematic pendants to volume-excluding cores are potentially useful for the fabrication of various robust optical devices. As illustrated in this study, the well-oriented glassy film of enantiomeric Bz3ChN, with a glass transition at 73 °C and a cholesteric-to-isotropic transition at 295 °C, exhibits a selective reflection band centered at approximately 410 nm, an exceptional set of properties well suited for optical device exploration. To enable sustainable, large-scale synthesis of this material class for widespread applications, a productive strategy has been established, requiring a mere three-step scheme with an overall yield, atom economy, and reaction mass efficiency at 34%, 33% and 12%, respectively. Lastly, while amenable to improvements, the resultant green chemistry metrics are encouraging as the first attempt.},
doi = {10.1021/acs.iecr.8b00667},
journal = {Industrial and Engineering Chemistry Research},
number = 12,
volume = 57,
place = {United States},
year = {2018},
month = {3}
}