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Title: 3D printable liquid crystalline elastomers with tunable shape memory behavior and bio-derived renditions

Abstract

Described herein are liquid crystalline elastomer compositions comprising aromatic epoxy units crosslinked with alkylene diacid units having alkylene segments containing at least one methylene unit, and/or aromatic epoxy units crosslinked with polyphenolic units, wherein the aromatic epoxy units and alkylene diacid units and/or polyphenolic units are in a molar ratio that results in the liquid crystalline elastomer composition exhibiting a glass transition temperature (Tg) and a thermal stability of the liquid crystalline phase (Tlc) that make them particularly suitable as shape memory materials and for use in methods of additive manufacturing. Methods for producing these compositions and their use 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:
1576328
Patent Number(s):
10407535
Application Number:
15/091,182
Assignee:
UT-Battelle, LLC (Oak Ridge, TN); Washington State University (Pullman, WA)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Apr 05
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Li, Yuzhan, Rios, Orlando, Johs, Alexander, and Kessler, Michael Richard. 3D printable liquid crystalline elastomers with tunable shape memory behavior and bio-derived renditions. United States: N. p., 2019. Web.
Li, Yuzhan, Rios, Orlando, Johs, Alexander, & Kessler, Michael Richard. 3D printable liquid crystalline elastomers with tunable shape memory behavior and bio-derived renditions. United States.
Li, Yuzhan, Rios, Orlando, Johs, Alexander, and Kessler, Michael Richard. Tue . "3D printable liquid crystalline elastomers with tunable shape memory behavior and bio-derived renditions". United States. https://www.osti.gov/servlets/purl/1576328.
@article{osti_1576328,
title = {3D printable liquid crystalline elastomers with tunable shape memory behavior and bio-derived renditions},
author = {Li, Yuzhan and Rios, Orlando and Johs, Alexander and Kessler, Michael Richard},
abstractNote = {Described herein are liquid crystalline elastomer compositions comprising aromatic epoxy units crosslinked with alkylene diacid units having alkylene segments containing at least one methylene unit, and/or aromatic epoxy units crosslinked with polyphenolic units, wherein the aromatic epoxy units and alkylene diacid units and/or polyphenolic units are in a molar ratio that results in the liquid crystalline elastomer composition exhibiting a glass transition temperature (Tg) and a thermal stability of the liquid crystalline phase (Tlc) that make them particularly suitable as shape memory materials and for use in methods of additive manufacturing. Methods for producing these compositions and their use in additive manufacturing processes are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

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