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. 2020 Oct 31;25(21):5066. doi: 10.3390/molecules25215066

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© 2020 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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Representative evaluation of data from stress relaxation measurements. (a) Experimental relaxation function; (b) experimental relaxation function and associated approximation; (c) relaxation time spectrum fitted from the relaxation function as the sum of two logarithmic normal distributions; (d) the dynamic moduli, storage, and loss modulus generated from the simulated spectrum; and (e) the equivalent diagram of a continuous relaxation function. The curves show the evaluation of one measurement of material system PEtOxA2 gained from nanoindentation.

Representative evaluation of data from stress relaxation measurements. (a) Experimental relaxation function; (b) experimental relaxation function and associated approximation; (c) relaxation time spectrum fitted from the relaxation function as the sum of two logarithmic normal distributions; (d) the dynamic moduli, storage, and loss modulus generated from the simulated spectrum; and (e) the equivalent diagram of a continuous relaxation function. The curves show the evaluation of one measurement of material system PEtOxA2 gained from nanoindentation.