Crosslinked polymers with tunable coefficients of thermal expansion

Redline, Erica Marie; Staiger, Chad; Wheeler, David R.; Appelhans, Leah; Foster, Jeffrey C.

Crosslinked polymers with tunable coefficients of thermal expansion

Patent · Tue Aug 29 00:00:00 EDT 2023

OSTI ID:2222244

Redline, Erica Marie; Staiger, Chad; Wheeler, David R.; Appelhans, Leah; Foster, Jeffrey C.

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

DOE Contract Number:: NA0003525

Assignee:: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Number(s):: 11,739,092

Application Number:: 17/344,717

OSTI ID:: 2222244

Country of Publication:: United States

Language:: English

References (12)

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