Stimuli-responsive liquid crystalline networks
Abstract
Liquid crystalline network compositions comprising azo-containing aromatic epoxy units cross-linked with alkylene diacid units having alkylene segments containing at least one methylene unit, wherein the azo-containing aromatic epoxy units and alkylene diacid units are connected by ester linkages resulting from ring-opening esterification between the epoxy units and alkylene diacids, and wherein the azo-containing aromatic epoxy units and alkylene diacid units are in a molar ratio that results in the liquid crystalline network composition exhibiting a glass transition temperature (T.sub.g) of at least 25.degree. C. Methods for producing these compositions and their use in light- or thermal-activated physical deformation, shape memory applications, and self-healing, as well as their ability to be recycled and used in additive manufacturing processes are also described.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1568166
- Patent Number(s):
- 10,253,261
- Application Number:
- 15/409,717
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN); Washington State University (Pullman, WA)
- DOE Contract Number:
- AC05-00OR22725; FA9550-12-1-0108
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 01/19/2017
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Li, Yuzhan, Rios, Orlando, and Kessler, Michael Richard. Stimuli-responsive liquid crystalline networks. United States: N. p., 2019.
Web.
Li, Yuzhan, Rios, Orlando, & Kessler, Michael Richard. Stimuli-responsive liquid crystalline networks. United States.
Li, Yuzhan, Rios, Orlando, and Kessler, Michael Richard. Tue .
"Stimuli-responsive liquid crystalline networks". United States. https://www.osti.gov/servlets/purl/1568166.
@article{osti_1568166,
title = {Stimuli-responsive liquid crystalline networks},
author = {Li, Yuzhan and Rios, Orlando and Kessler, Michael Richard},
abstractNote = {Liquid crystalline network compositions comprising azo-containing aromatic epoxy units cross-linked with alkylene diacid units having alkylene segments containing at least one methylene unit, wherein the azo-containing aromatic epoxy units and alkylene diacid units are connected by ester linkages resulting from ring-opening esterification between the epoxy units and alkylene diacids, and wherein the azo-containing aromatic epoxy units and alkylene diacid units are in a molar ratio that results in the liquid crystalline network composition exhibiting a glass transition temperature (T.sub.g) of at least 25.degree. C. Methods for producing these compositions and their use in light- or thermal-activated physical deformation, shape memory applications, and self-healing, as well as their ability to be recycled and used in additive manufacturing processes are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {4}
}