Articles de revista: Enviaments recents
Ara es mostren els items 1-12 de 115
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Biobased imine vitrimers obtained by photo and thermal curing procedures-promising materials for 3D printing
(American Chemical Society (ACS), 2024-03-14)
Article
Accés obertImine-based vitrimers were prepared from synthesized diimine-dimethacrylate monomer derived from biobased vanillin. First, a methacrylate derivative starting from vanillin was synthesized. The diimine derivative was ... -
Harnessing disulfide and transesterification bond exchange reactions for recyclable and reprocessable 3D-printed vitrimers
(2024-02-01)
Article
Accés obertTwo new vitrimeric materials have been studied for potential additive manufacturing applications such as 3D- printing. A monomer containing disulfide bonds and ß-hydroxyesters was easily synthesized from two low- cost and ... -
Eugenol-based dual-cured materials with multiple dynamic exchangeable bonds
(Elsevier, 2024-02-21)
Article
Accés obertIn the present work, the preparation of sustainable thermosets has been approached simultaneously from three different points of view: a) the use of bio-based monomers chemically modified through green methodologies, b) ... -
Easily recycled thiol-ene elastomers with controlled creep
(Elsevier, 2024-03)
Article
Accés obertStarting from in-house synthesized allylic monomers containing dynamic disulfide (S–S) bonds, a set of vitrimeric thiol-ene elastomers were prepared and characterized with respect to their viscoelastic and tensile properties. ... -
Preparation of poly(thiourethane) networks by using a novel acidic organocatalyst. Evaluation of their vitrimer-like behavior
(2023-02)
Article
Accés restringit per política de l'editorialIn this work, a novel acidic catalyst, isopropyl methane sulfonate, has been tested for the preparation of a series of poly(thiourethane) thermosets (PTU)s. The advantage of this compound is that in addition to being free ... -
Dual-cured thermosets based on eugenol derivatives and thiol chemistry
(Elsevier, 2023-11-22)
Article
Accés restringit per política de l'editorialThis paper aims to increase sustainability in thermosetting polymeric fields using bio-based monomers and environmentally friendly processing technologies based on dual-curing. Eugenol has been transformed into acrylate ... -
Critical analysis of the thermal stability of transesterification vitrimers for 3D-printing applications based on digital light processing
(2023-11-17)
Article
Accés obert3D-printable vitrimers processed by digital light processing (DLP) have been recently developed, based on the transesterification reaction of ß-hydroxyester structures from mono- and diacrylate monomers employed in the ... -
The use of lanthanide triflates in the preparation of poly(thiourethane) covalent adaptable networks
(Elsevier, 2023-09-22)
Article
Accés obertCovalent adaptable networks (CANs) are new polymeric materials with the mechanical properties of thermosets and the possibility of being recycled like thermoplastics. Poly(thiourethane) networks have demonstrated vitrimeric-like ... -
Structural design of CANs with fine-tunable relaxation properties: a theoretical framework based on network structure and kinetics modeling
(American Chemical Society, 2023-06-23)
Article
Accés obertIn this work, we present a model capable of reproducing the stress relaxation dynamics of a wide range of relaxation processes in covalent adaptable networks (CANs) produced by stepwise polymerization. The proposed model ... -
Recyclable dual-curing thiol-isocyanate-epoxy vitrimers with sequential relaxation profiles
(Elsevier, 2023-09-11)
Article
Accés obertTwo series of poly(thiourethane)s-poly(thiol-epoxy) hybrids were prepared from dual-curing, stoichiometric thiol:isocyanate:epoxy mixtures. 1-methylimidazole (MI) was used as initiator for the thiol-isocyanate and thiol-epoxy ... -
Adhesive properties of thiol-acrylate-epoxy composites obtained by dual-curing procedures
(Elsevier, 2022-01)
Article
Accés obertComposite materials were prepared using a thiol-acrylate-epoxy dual-curing system filled with Boron Nitride (BN) agglomerates. The adhesive properties obtained with two different acrylate ratios (ra) were tested to ... -
ICTAC Kinetics Committee recommendations for analysis of thermal polymerization kinetics
(Elsevier, 2022-08-01)
Article
Accés restringit per política de l'editorialThe present recommendations have been developed by the Kinetics Committee of the International Confederation for Thermal Analysis and Calorimetry (ICTAC). The recommendations provide guidance on kinetic analysis of thermal ...