Novel “Rigid to Flexible” Biobased Polyesters Fully Derived from 5-Hydroxymethylfurfural: Promising as Sustainable UV Shielding and Gas Barrier Materials

Bio-based polymers are recognized as promising alternatives to fossil-based counterparts. However, the inferior material performance of bio-based polymers is a serious restriction to their application fields. Herein, renewable polyethylene-like materials (PLMs) are used as surface coatings for commercial fabrics. First, α,ω-diene monomers were synthesized by the downstream products of sugar and castor oil derivatives. Subsequently, biomass-derived polymers were generated via acyclic diene metathesis (ADMET) (co)polymerization of these monomers followed by exhaustive hydrogenation. The obtained long-chain aliphatic polyesters are considered remarkable polyethylene mimics in that these hydrophobic and semicrystalline materials show unique features such as hydrolysis resistance and recyclability. On the other hand, PLM nanoparticles were prepared by the nanoprecipitation method and then drop-cast on commercial fabric surfaces. Hydrophobically modified fabrics show repellency to various water droplets and the capability of oil/water separation as well as anti-icing and anticorrosive characteristics. Moreover, photoinduced contaminant removal and wettability change are realized by fabrics with a hybrid coating layer composed of PLM and titanium dioxide (TiO 2 ) nanoparticles. These polyethylene-mimetic materials not only meet the requirements of sustainability in terms of renewability and recyclability but also show great prospects in surface functionalization of commercial fabrics and upcycling of waste textiles.

Section: Introductionmentioning

confidence: 99%

Recyclable Biomass-Derived Polyethylene-Like Materials as Functional Coatings for Commercial Fabrics: Toward Upcycling of Waste Textiles

Qin

Gan

et al. 2022

“…All-atom molecular dynamics simulations were performed using the commercial software package Materials Studio 8.0 provided by Accelry Inc. (San Diego). The COMPSAAII force field was adopted for the simulations, which has been shown to be suitable for the calculation of organic compounds . The van der Waals interactions were calculated by an atom-based approach with a cutoff distance of 18.5 Å.…”

Section: Methodsmentioning

confidence: 99%

“…The COMPSAAII force field was adopted for the simulations, which has been shown to be suitable for the calculation of organic compounds. 32 The van der Waals interactions were calculated by an atom-based approach with a cutoff distance of 18.5 Å. The Coulombic interaction was calculated using the Ewald summation method with an Ewald accuracy of 0.0001 kcal mol −1 and a buffer width of 10.5 Å.…”

Section: ■ Introductionmentioning

confidence: 99%

Relationship between the Structure of Modified Ricinoleic Acids via the Thiol–Ene Click Reaction and the Fogging Value of Fatliquored Leather

Zhang

Liu

et al. 2022

Herein, hydroxylated, aminated, and carboxylated ricinoleic acids (RA-OH, RA-NH 2 , RA-COOH) are individually prepared via facile and efficient thiol−ene click reactions with renewable ricinoleic acid and commercially available sulfhydryl compounds as raw materials. The resulting modified ricinoleic acids are subsequently used as natural oils to prepare environmentally friendly fatliquors for automotive interior leather of a low fogging value. Further, the influence of the molecular structure of the three modified ricinoleic acids on the fogging value and free grease content of the fatliquored leather is systematically studied by molecular dynamics simulation theoretical predictions and regular experimental characterization. The introduction of −OH, −NH 2 , and −COOH to ricinoleic acid can increase its ability to form strong intermolecular interactions with leather collagen fibers, as confirmed by the E binding values from molecular dynamics simulations. The interaction strength of modified ricinoleic acids and leather collagen is in the order RA-OH > RA-COOH > RA-NH 2 > RA, leading to a low migration rate of modified ricinoleic acids and an obvious lubricating effect on the collagen fibers. Among them, RA-OH shows the strongest intermolecular interaction with leather collagen and is difficult to migrate from the collagen matrix; thus, the RA-OH fatliquored leather exhibits the lowest fogging value of 6.38 mg, the lowest free grease content of 12.36%, and excellent softness and physical and mechanical properties. Overall, a combination of renewable ricinoleic acids with "green" thiol−ene click reactions provides a new strategy for the preparation of sustainable fatliquors for automotive interior leather of a low fogging value, and the wastewater after fatliquoring is also biodegradable, all of which contribute to the sustainable development of the fatliquors in the leather industry.

“…2,3 In order to respond to the proposal of the "Carbon Neutral" policy, 2,5-furandicarboxylic acid (FDCA) as a biomass resource has provoked keen research interest. 4,5 FDCA is an excellent monomer candidate for biodegradable furan-based polyesters. It could be polymerized into common furanyl polymers, including poly(ethylene 2,5-furanoate) (PEF), poly(propylene 2,5-furanoate) (PPF), and poly(butylene 2,5furanoate) (PBF).…”

Section: ■ Introductionmentioning

confidence: 99%

“…The development of biomass resources can alleviate current imminent environmental problems. Furthermore, it can provide promising materials for sustainable development. , In order to respond to the proposal of the “Carbon Neutral” policy, 2,5-furandicarboxylic acid (FDCA) as a biomass resource has provoked keen research interest. , FDCA is an excellent monomer candidate for biodegradable furan-based polyesters. It could be polymerized into common furanyl polymers, including poly(ethylene 2,5-furanoate) (PEF), poly(propylene 2,5-furanoate) (PPF), and poly(butylene 2,5-furanoate) (PBF). , Among them, PEF has attracted great attention due to its superior mechanical strength and excellent gas barrier performance.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Poly(ethylene 2,5-furanoate) into Poly(butylene adipate-co-terephthalate) toward Sustainable Food Packaging Films with Enhanced Strength and Barrier Properties

Wang

Wei

et al. 2023

The development of environment-friendly biodegradable materials has aroused widespread attention and interest. Herein, kilogram-scale poly(ethylene 2,5-furanoate) (PEF) was synthesized and incorporated into poly(butylene adipate-coterephthalate) (PBAT) via melt-compounding. Then, the PBAT/ PEF blend films were prepared by the extrusion blowing method. The results showed that PEF could greatly improve the tensile performance and tear resistance of PBAT/PEF blend films. The superior mechanical properties were achieved in PBAT/PEF10 blend films with a tensile strength of 44.3 ± 2.9 MPa and an elongation at break of 900.5 ± 21.9%. Besides, the transmittance of oxygen (O 2 ), carbon dioxide (CO 2 ), and water vapor sharply reduced by 78.8, 74, and 48.3% in comparison with those of a pure PBAT film, respectively. The inherent barrier characteristic of PEF and the enhanced bonding between PBAT and PEF contributed to the excellent gas and water vapor barrier performance. Furthermore, PBAT/PEF blend films were used for the fruit preservation tests. After a 15 day preservation, the freshness of fruits covered with PBAT/PEF films was well kept, showing great potentialin food packing applications.