Phase Organization and Circularity in PLLA/Vitrimer Semi-interpenetrating Polymer Networks
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Le résumé fourni par la source
High Resolution Image Download MS PowerPoint Slide We investigated, for the first time, the properties of semi-interpenetrating polymer networks (semi-IPNs) formed by curing a vitrimeric biobased covalent adaptable network (CAN) resin, labeled DOM-MVL, in the presence of PLLA. Three semi-IPNs with PLLA:DOM-MVL weight ratios of 80:20, 65:35, and 50:50 were developed. The 80:20 and 65:35 semi-IPNs exhibited a single glass transition temperature ( T g ), whose value was between those of pure CAN (31 °C) and pure PLLA (60 °C). In contrast, the 50:50 semi-IPN exhibited a broad T g, with a midpoint at 28 °C, attributed to the presence of uncured resin acting as a plasticizer in the PLLA phase. In the 65:35 semi-IPN, the presence of the CAN phase significantly inhibited PLLA crystallization. Conversely, the 50:50 sample exhibited a wider crystallization window and enhanced crystallization potential of the PLLA phase consistent with the presence of residual resin acting as a plasticizer. Scanning electron microscopy, conducted after PLLA removal, revealed a porous network with voids corresponding to previously PLLA crystalline domains. All semi-IPNs were mechanically reprocessed via hot pressing, and the feasibility of separating and recovering both components was demonstrated.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Phase Organization and Circularity in PLLA/Vitrimer Semi-interpenetrating Polymer Networks
- Date Crossref
- 16/06/2026
- Éditeur
- American Chemical Society (ACS)
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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University of Bologna Department of Chemistry “Giacomo Ciamician” and INSTM UdR of Bologna pays non établi dans la noticeUniversité ou école supérieure
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Sapienza University of Rome Department of Chemistry pays non établi dans la noticeUniversité ou école supérieure
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KTH Royal Institute of Technology Department of Fibre and Polymer Technology pays non établi dans la noticeUniversité ou école supérieure
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Institute for Chemical and Physical Processes National Research Council pays non établi dans la noticeStructure de recherche
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National Research Council pays non établi dans la noticeOrganisation à but non lucratif
Department of Chemistry “Giacomo Ciamician” and INSTM UdR of Bologna — University of Bologna, Department of Chemistry — Sapienza University of Rome et Department of Fibre and Polymer Technology — KTH Royal Institute of Technology, avec 2 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.