Dynamic calorimetry and XRD studies of the nematic and twist-bend nematic phase transitions in a series of dimers with increasing spacer length-Reference-Cited by-同舟云学术

Dynamic calorimetry and XRD studies of the nematic and twist-bend nematic phase transitions in a series of dimers with increasing spacer length

Published:2018 Issue:39 Volume:20 Page:25268-25274
ISSN:1463-9076
Container-title:Physical Chemistry Chemical Physics
language:en
Short-container-title:Phys. Chem. Chem. Phys.

Author:

Stevenson Warren D.¹²³⁴⁵,Zou Heng-xing¹²³⁴,Zeng Xiang-bing⁵⁶⁷⁸^ORCID,Welch Christopher⁹¹⁰¹¹⁸^ORCID,Ungar Goran¹²³⁴⁵^ORCID,Mehl Georg H.⁹¹⁰¹¹⁸^ORCID

Affiliation:

1. Department of Physics

2. Zhejiang Sci-Tech University

3. Hangzhou 310018

4. China

5. Department of Materials Science and Engineering

6. University of Sheffield

7. Sheffield S1 3JD

8. UK

9. Department of Chemistry

10. University of Hull

11. Hull HU6 7RX

Abstract

A modulated DSC study of bent dimesogens with (CH₂)_n spacers n = 5–11 showed that the enthalpy of the ordinary nematic is lowest for n = 11 due to the lowest C–C torsion energy needed to straighten the dimer, causing near disappearance of twist-bend-nematic to nematic transition enthalpy.

Funder

Engineering and Physical Sciences Research Council

Recruitment Program of Global Experts

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

Link

http://pubs.rsc.org/en/content/articlepdf/2018/CP/C8CP05744C

Reference48 articles.

1. Twist-bend heliconical chiral nematic liquid crystal phase of an achiral rigid bent-core mesogen

2. Room temperature heliconical twist-bend nematic liquid crystal