Photo-isomerization effect of the azobenzene chain on the opto-mechanical behavior of nematic polymer: A molecular dynamics study
- Authors
- Choi, Joonmyung; Hayoung Chung; Jung-Hoon Yun; Maenghyo Cho
- Issue Date
- Dec-2014
- Publisher
- American Institute of Physics
- Citation
- Applied Physics Letters, v.105, no.22, pp.1 - 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- Applied Physics Letters
- Volume
- 105
- Number
- 22
- Start Page
- 1
- End Page
- 5
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/21065
- DOI
- 10.1063/1.4903247
- ISSN
- 0003-6951
- Abstract
- The opto-mechanical properties of a photo-responsive nematic polymer network (PRPN) are investigated using molecular dynamics simulation. For the implementation of the trans-to-cis isomerization of azo compounds, a switchable potential formalism for the N = N bond is applied to the crosslinked PRPN unit cell model. During the light switch-on and heating-up simulations at a wide range of temperatures, the scalar orientational order parameter for the mesogenic side group molecules, the effective photo-induced strain of the bulk polymer network, and the opto-mechanical properties are characterized. The correlation between the microstate which belongs to the molecular location and the macroscopically observed photostrain is identified according to the isomerization ratio of the diazene groups. (c) 2014 AIP Publishing LLC.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MECHANICAL ENGINEERING > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.