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This content will become publicly available on March 15, 2019

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