
Crystal Growth & Design, Год журнала: 2024, Номер unknown
Опубликована: Окт. 1, 2024
Язык: Английский
Crystal Growth & Design, Год журнала: 2024, Номер unknown
Опубликована: Окт. 1, 2024
Язык: Английский
Journal of Polymers and the Environment, Год журнала: 2025, Номер unknown
Опубликована: Янв. 18, 2025
Язык: Английский
Процитировано
0Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 132478 - 132478
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0Materials Chemistry and Physics, Год журнала: 2025, Номер unknown, С. 130726 - 130726
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116321 - 116321
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0Journal of Polymer Science, Год журнала: 2025, Номер unknown
Опубликована: Апрель 9, 2025
ABSTRACT Polycarbonate polymers find widespread use for a variety of applications. Driven by the need to transition away from fossil‐based resources, there is increasing interest in exploring bio‐based monomers synthesis polycarbonates. One interesting class molecules that can be isolated biological including lignin, are hydroxycinnamic acids. This paper reports library aromatic diols using p ‐coumaric acid, ferulic and sinapic acid as starting materials. Using dimethyl carbonate, these polymerized generate semi‐aromatic polycarbonate homo‐ copolymers. These polycarbonates depolymerized via an organocatalyzed process afford essentially quantitative yield. The obtained this depolymerization could subsequently repolymerized, with no purification needed, regenerate original polymer identical molecular weight, providing pathway chemical recycling
Язык: Английский
Процитировано
0Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0Journal of Environmental Management, Год журнала: 2024, Номер 372, С. 123334 - 123334
Опубликована: Ноя. 16, 2024
Язык: Английский
Процитировано
2European Polymer Journal, Год журнала: 2023, Номер 202, С. 112595 - 112595
Опубликована: Ноя. 14, 2023
The insertion of rigid aliphatic or aromatic building blocks in polymer structures is an efficient synthetic strategy towards high-Tg materials. In the present work, we have functionalized isosorbide 5-methacrylate with various lignin-inspired esters to yield a series isosorbide-2-aryl carboxylate-5-methacrylate monomers (ArIMAs) as single regioisomers. selection phenyl carboxylate side groups included benzoate, p-cyanobenzoate, meta/para-methoxybenzoates, and different vanillic acid esters. This afforded range seven bio-based size, polarity, substitutions. Polymerizations were carried out by conventional free radical initiation obtain corresponding high molecular-weight poly(aryl methacrylate)s (PArIMAs). polymerizations evaluated solvents, including toluene, EtOAc, γ-valerolactone, 2-MeTHF, DMSO identify most suitable conditions. polymers exhibited glass transition temperatures broad range, from 80 168 °C, thermally stable up 268 °C. Furthermore, dynamic rheology experiments indicated that sufficiently for melt processing. availability combined stability make these materials attractive use high-performance plastics coatings.
Язык: Английский
Процитировано
4ACS Applied Nano Materials, Год журнала: 2024, Номер 7(21), С. 24819 - 24832
Опубликована: Окт. 28, 2024
Efficient conversion of abundant biomass into high-value chemicals is crucial for sustainable chemical production. Herein, we report the design and synthesis a Pd nanoparticles (NPs)-embedded N-doped carbon nitride (Pd@NCN) nanocomposite photocatalytic transformation biomass-derived compounds. N-doping using DMF significantly enhanced visible light absorption, as evidenced by DRUV spectroscopy, making it suitable photocatalyst blue LED-driven reactions. Subsequent decoration with NPs remarkably improved catalyst's performance. UPS measurements revealed that NPs, their lower Fermi level higher work function compared to photoactive support, act efficient electron acceptors, promoting charge separation improving catalytic activity. This was corroborated PL, TCSPC, EIS studies. Photogenerated electrons on surface-activated hydrogen, enabling hydrogenation derivatives at room temperature. Concurrently, photogenerated holes were consumed IPA via O–H C–H, leading acetone formation. The optimized 1% [email protected] catalyst exhibited exceptional activity in vanillin (VAN), achieving 79.6% 94.4% selectivity vanillyl alcohol (VOL) within an hour. Moreover, reaction could be tuned adjusting loading time, complete VAN excellent (∼99%) 2-methoxy-4-methylphenol (MMP) 2% 4.5 h. Comprehensive characterization mechanistic studies provided insights structure–activity relationship, paving way development advanced NPs-based photocatalysts challenging valorization ambient conditions.
Язык: Английский
Процитировано
1Current Opinion in Green and Sustainable Chemistry, Год журнала: 2024, Номер 51, С. 100988 - 100988
Опубликована: Ноя. 29, 2024
Язык: Английский
Процитировано
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