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. 2019 Apr 19;11(4):723. doi: 10.3390/polym11040723

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Temperature dependence of the storage modulus (E’) logarithm at 5 Hz for EN, EN+LH and EN+LH/lawsone composites before (a) and after (b) 350 h of aging.