Glad to see this collaboration finally out! ๐๐งช
22.04.2025 09:04 โ ๐ 3 ๐ 0 ๐ฌ 0 ๐ 0
Congratulations @bonny-gao.bsky.social, such a fantastic piece of work!
18.04.2025 07:02 โ ๐ 3 ๐ 0 ๐ฌ 0 ๐ 0
Had a fantastic time presenting my work on polyester-based reprocessable vitrimers โป๏ธ at #SCHEMASpring25 on Tuesday! Iโm very grateful for the opportunity!
You can read all about it here: pubs.acs.org/doi/10.1021/...
27.03.2025 08:58 โ ๐ 5 ๐ 0 ๐ฌ 0 ๐ 0
Precise Carboxylic Acid-Functionalized Polyesters in Reprocessable Vitrimers
Thermosets are valued for their exceptional dimensional stability, mechanical properties, and resistance to creep and chemicals. Their permanent molecular structures limit reshaping, reprocessing, and recycling. Incorporating exchangeable chemical bonds into cross-linked polymer networks provides materials with thermoset-like properties that are also reprocessable. Here, ring-opening copolymerization (ROCOP) of unpurified, commercially available epoxides and succinic anhydride is employed to synthesize well-defined, low molecular weight polyesters with controlled functionalization. Polymer networks are then formed through the catalyzed reaction of these copolymers with the epoxy-containing cross-linker diglycidyl ether of bisphenol A. Catalyst mixtures of zinc bis(2-ethylhexanoate) and 1,8-diazabicyclo(5.4.0)undec-7-ene are used to assess the role of the catalysts in the curing and dynamic bond exchange reactions. Varying the catalyst ratios results in polymer networks with tunable mechanical properties (90% < ฮตb < 450%, 0.30 MPa < UTS < 24 MPa), high creep recovery (%recovery > 90% after five creep cycles), and good reprocessability.
Thrilled to share this work on precise COOH-functionalized polyesters in reprocessable vitrimers, now online in JACS! This research highlights the role of catalysts in vitrimer chemistry and how tailored catalyst mixtures can control vitrimer properties and bond exchange pubs.acs.org/doi/10.1021/...
14.02.2025 11:43 โ ๐ 11 ๐ 2 ๐ฌ 1 ๐ 1
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Bioforge Lab Univ. Valladolid (Spain). Designing and producing recombinamers for Biomedicine. Prof. Rodrรญguez-Cabello.
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PhD in supramolecular chemistry & BSc in chemical biology
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