Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Crosslinked polymers with tunable coefficients of thermal expansion

Patent ·
OSTI ID:2541679
; ; ; ;
Curatives and their resulting thermosets and other crosslinked polymers can reduce thermal expansion mismatch between an encapsulant and objects that are encapsulated. This can be accomplished by incorporating a negative CTE moiety into the thermoset resin or polymer backbone. The negative CTE moiety can be a thermal contractile unit that shrinks as a result of thermally induced conversion from a twist-boat to chair or cis/trans isomerization upon heating. Beyond CTE matching, other potential uses for these crosslinked polymers and thermosets include passive energy generation, energy absorption at high strain rates, mechanophores, actuators, and piezoelectric applications.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
NA0003525
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Number(s):
11,873,301
Application Number:
18/123,665
OSTI ID:
2541679
Country of Publication:
United States
Language:
English

References (12)

Soluble, Thermally Stable, and Low Thermal Expansion Polyarylamides Enabled by a Seven-Membered Carbocycle journal November 2020
Large negative thermal expansion of a polymer driven by a submolecular conformational change journal October 2013
Dye labeling technique for monitoring the cure of polyimides and polyureas: model compound studies journal June 1987
Preparation of ultra-low CTE epoxy composite using the new alkoxysilyl-functionalized bisphenol A epoxy resin journal January 2018
Progress of Research in Negative Thermal Expansion Materials: Paradigm Shift in the Control of Thermal Expansion journal July 2018
Design and Synthesis of Thermal Contracting Polymer with Unique Eight-Membered Carbocycle Unit journal February 2018
Crosslinking of fluoroelastomers by “click” azide-nitrile cycloaddition journal February 2015
Negative thermal expansion: a review journal July 2009
Arene Substitution Design for Controlled Conformational Changes of Dibenzocycloocta-1,5-dienes journal September 2020
Thermal expansion coefficient of polycrystalline silicon and silicon dioxide thin films at high temperatures journal May 2000
Nitration of Diphenylmethane and the Isomeric Nitrodiphenylmethanes in Dichloromethane journal April 2002
Thermal expansion at elevated temperatures. II. Aluminium oxide: experimental data between 100 and 800 K and their analysis journal May 1972

Similar Records

Crosslinked polymers with tunable coefficients of thermal expansion
Patent · Tue Aug 29 00:00:00 EDT 2023 · OSTI ID:2222244
Tuning Epoxy Thermomechanics via Thermal Isomerization: A Route to Negative Coefficient of Thermal Expansion Materials
Journal Article · Thu Jul 01 20:00:00 EDT 2021 · ACS Macro Letters · OSTI ID:1810360
Isomerization kinetics of azobenzene crosslinked to a liquid crystal polymer network
Journal Article · Thu Sep 18 20:00:00 EDT 2025 · Polymer · OSTI ID:2589868

Related Subjects