Dielectric Properties of Bio-Based Diphenolate Ester Epoxies

Thermoset bio-based diglycidyl ether of diphenolate esters (DGEDP) exhibit comparable mechanical properties as petroleum-derived diglycidyl ether of bisphenol A (DGEBA), whereas DGEDP is derived from levulinic acid, a safe and readily renewable feedstock. To determine the potential replacement of DG...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2018-04, Vol.10 (16), p.13924-13930
Main Authors: McMaster, Michael S, Yilmaz, Talha E, Patel, Ammar, Maiorana, Anthony, Manas-Zloczower, Ica, Gross, Richard, Singer, Kenneth D
Format: Article
Language:English
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Summary:Thermoset bio-based diglycidyl ether of diphenolate esters (DGEDP) exhibit comparable mechanical properties as petroleum-derived diglycidyl ether of bisphenol A (DGEBA), whereas DGEDP is derived from levulinic acid, a safe and readily renewable feedstock. To determine the potential replacement of DGEBA as dielectric materials, a series of DGEDP-esters (i.e., methyl, ethyl, propyl, and butyl esters) were synthesized and studied. Broadband dielectric spectroscopy revealed that DGEDP-propyl has the highest dielectric constant in the series, comparable to DGEBA. Differences in the dielectric properties of DGEDP-esters is attributed to the interplay of segmental, small local, and side-chain motions on one hand and free volume and steric hindrance on the other.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.7b19085