Scalable Synthesis of Cholesteric Glassy Liquid Crystals
[2];
[4]
- D’Youville College, Buffalo, NY (United States). Dept. of Chemistry; Univ. of Rochester, NY (United States). Dept. of Chemical Engineering
- Univ. of Rochester, NY (United States). Dept. of Chemical Engineering
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics; Univ. of Rochester, NY (United States). Dept. of Chemical Engineering
- Univ. of Rochester, NY (United States). Dept. of Chemical Engineering; Univ. of Rochester, NY (United States). Lab. for Laser Energetics
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.
- Research Organization:
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0001944
- OSTI ID:
- 1437580
- Report Number(s):
- 2018-14; 14-04; 2018-14, 1404, 2360
- Journal Information:
- Industrial and Engineering Chemistry Research, Vol. 57, Issue 12; ISSN 0888-5885
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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