Effect of crosslinking fraction, hardener functionality and topological quality on stress recovery of thermoset shape memory polymers: a coarse-grained molecular dynamics study
Autor(en): |
Pouria Nourian
Collin D. Wick Andrew J. Peters |
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Medium: | Fachartikel |
Sprache(n): | Englisch |
Veröffentlicht in: | Smart Materials and Structures, 19 Oktober 2023, n. 11, v. 32 |
Seite(n): | 115001 |
DOI: | 10.1088/1361-665x/acfa7d |
Abstrakt: |
We analyzed the effects of crosslinking fraction and number of functional sites per hardener molecule on the stress recovery and topology of thermoset shape memory polymers (TSMPs) via coarse-grained molecular dynamics simulations. After systematically varying the quality of the crosslinked network by manipulating the number of unique epoxies reacted with each hardener, we found that two fingerprints correlate well with stress recovery of TSMPs. These fingerprints are the fraction of epoxy molecules connected to two distinct hardener molecules, and the fraction of molecules that are part of the largest or main network in the system. Their product can be used as a topological score ( |
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Datenseite - Reference-ID
10742583 - Veröffentlicht am:
28.10.2023 - Geändert am:
28.10.2023