1,2,3-Triazole mediated, non-halogenated phosphorus containing protective coatings from castor oil: Flame retardant and anti-corrosion applications

Progress in Organic Coatings, Journal Year: 2023, Volume and Issue: 178, P. 107475 - 107475

Published: Feb. 18, 2023

Language: Английский

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Self-Healing and Recyclable Castor Oil-Based Epoxy Vitrimer Based on Dual Dynamic Bonds of Disulfide and Ester Bonds

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(14), P. 8399 - 8408

Published: July 15, 2024

Language: Английский

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Sustainable epoxy vitrimer materials with imine and disulfide bonds prepared from epoxidized soybean oils

Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 225, P. 120435 - 120435

Published: Jan. 9, 2025

Language: Английский

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Integration of sustainable polymers with phase change materials

Progress in Materials Science, Journal Year: 2025, Volume and Issue: unknown, P. 101447 - 101447

Published: Jan. 1, 2025

Language: Английский

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Sustainable Bio-Based UV-Cured Epoxy Vitrimer from Castor Oil

Polymers, Journal Year: 2023, Volume and Issue: 15(4), P. 1024 - 1024

Published: Feb. 18, 2023

Vitrimers brought new properties in thermosets by allowing their reshaping, self-healing, reprocessing, and network rearrangement without changing structural integrity. In this study, epoxidized castor oil (ECO) was successfully used for the straightforward synthesis of a bio-based solvent-free vitrimer. The based on UV-curing process, which proceeded at low temperatures absence any solvents, within short time. Real time Fourier-transformed infrared spectroscopy photo-DSC were exploited to monitor cationic photocurable process. UV-cured polymer networks able efficiently undergo thermo-activated bond exchange reactions due presence dibutyl phosphate as transesterification catalyst. Mechanical properties, thermal resistance, glass transition temperature, stress relaxation investigated function amount determined both DMTA tensile tests. Glass temperature (Tg) evaluated DMTA. Thermal stability assessed thermogravimetric analysis, whilst vitrimeric studied experiments. Overall, ECO-based vitrimer showed high resistance (up 200 °C) good mechanical (elastic modulus about 10 MPa) can therefore be considered promising starting point obtaining more sustainable vitrimers.

Language: Английский

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Fabrication of malleable, repairable, weldable, recyclable and robust epoxy vitrimers from itaconic acid for recycled adhesion

European Polymer Journal, Journal Year: 2023, Volume and Issue: 196, P. 112278 - 112278

Published: July 4, 2023

Language: Английский

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From biomass to vitrimers: Latest developments in the research of lignocellulose, vegetable oil, and naturally-occurring carboxylic acids

Industrial Crops and Products, Journal Year: 2023, Volume and Issue: 206, P. 117690 - 117690

Published: Oct. 28, 2023

Language: Английский

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Next‐Generation Vitrimers Design through Theoretical Understanding and Computational Simulations

Advanced Science, Journal Year: 2023, Volume and Issue: 11(5)

Published: Dec. 7, 2023

Abstract Vitrimers are an innovative class of polymers that boast a remarkable fusion mechanical and dynamic features, complemented by the added benefit end‐of‐life recyclability. This extraordinary blend properties makes them highly attractive for variety applications, such as automotive sector, soft robotics, aerospace industry. At their core, vitrimer materials consist crosslinked covalent networks have ability to dynamically reorganize in response external factors, including temperature changes, pressure variations, or shifts pH levels. In this review, aim is delve into latest advancements theoretical understanding computational design vitrimers. The review begins offering overview fundamental principles underlie behavior these materials, encompassing structures, behavior, reaction mechanisms. Subsequently, recent progress vitrimers explored, with focus on employment molecular dynamics (MD)/Monte Carlo (MC) simulations density functional theory (DFT) calculations. Last, existing challenges prospective directions field critically analyzed, emphasizing necessity additional advancements, coupled experimental validation.

Language: Английский

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Preparation of lignin-based vinylogous urethane vitrimer materials and their potential use as on-demand removable adhesives

Green Chemistry, Journal Year: 2023, Volume and Issue: 26(3), P. 1414 - 1429

Published: Oct. 19, 2023

Preparation of the lignin-based vitrimer and its reconstruction through vinylogous urethane-amine exchange.

Language: Английский

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Imine-Containing Epoxy Vitrimer Cured by Active Ester: Properties and Theoretical Analysis

ACS Applied Polymer Materials, Journal Year: 2023, Volume and Issue: 5(12), P. 10042 - 10052

Published: Nov. 16, 2023

Vitrimers are polymers possessing a covalent adaptable network (CANs) that can undergo topological structural transformation under specific conditions, enabling material reprocessing. In this study, an active ester hardener containing imine bonds (TAI) was synthesized, and subsequently, epoxy resin with CANs (epoxy vitrimer, DGEBA/TAI) prepared, which exhibited excellent thermal stability (initial degradation temperature of 364 °C char yield at 800 30%), low water absorption (0.25 wt %), good dielectric properties (dielectric constant 3.37 loss 0.013). A comparative scratch healing test between the vitrimer conventional showed hard could not demonstrate self-healing ability derived from deformation recovery. The performance such vitrimers should focus on recycling reprocessing rather than capability. Thus, be effectively recycled reused by hot pressing or solvent method, resulting in resins tensile strength (70 MPa for hot-press welding 58 recycling) compared to originals (69 MPa). addition, materials allow shape reconfiguration through structure transformation, alternative analytical method proposed obtain relaxation time fitting equation stress curve, mitigate some interferences provide data reliability verification viscoelastic vitrimer.

Language: Английский

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