Impact of Ball Milling on the Microstructure of Polyethylene Terephthalate DOI Creative Commons

Ali Zaker,

Karine Auclair

ChemSusChem, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 7, 2024

Polyethylene terephthalate (PET) is a semi-crystalline polymer that finds broad use. Consequently, it contributes to the accumulation of plastics in environment, warranting PET recycling technologies. Ball milling commonly used technique for micronization before transformation. It has also recently been reported as an efficient mixing strategy enzymatic hydrolysis moist-solid mixtures. However, effect on microstructure not systematically investigated. Thus, primary objective this study characterize changes caused by various ball conditions. different forms was examined, including pre- and post-consumer PET, well textiles. The material treated range frequencies duration, analysis particle size, crystallinity differential scanning calorimetry powder X-ray diffraction, morphology electron microscopy. Interestingly, our results suggest convergence ~30 % within 15 minutes at 30 Hz. These are consistent with equilibrium between amorphous crystalline regions being established during milling. combined data constitutes reference guide research.

Language: Английский

Moving mechanochemistry forward DOI Creative Commons
James D. Batteas, Kerstin G. Blank, Evelina Colacino

et al.

RSC Mechanochemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

James Batteas, et al. , introduce the field of mechanochemistry in “Moving forward”.

Language: Английский

Citations

0
Mechanochemical synthetic strategy of isoreticular flexible metal-organic frameworks with pre-designed mixed metal clusters DOI Creative Commons
Hong Kyu Lee, Hoi Ri Moon

RSC Mechanochemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A mechanochemical strategy enables MIL-88 synthesis using pre-assembled mixed-metal clusters, ensuring precise metal ratios and phase purity. This approach overcomes synthetic challenges, expanding the scope of MOF fabrication.

Language: Английский

Citations

0
Catalytic Impact of Nano‐Supramolecular Complex Based on Lead and Quinoline‐2‐Carbxylic Acid Ligand as Efficient Catalyst for Removal of Hazardous Materials From Wastewater DOI Open Access
Dalia I. Saleh, Samy F. Mahmoud, Safaa Eldin H. Etaiw

et al.

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(3)

Published: Feb. 17, 2025

ABSTRACT Under ultrasonication, the nanoscale supramolecular complex [Pb (QCA) 2 ] n (NSC 1 ) was formed by self‐assembly of lead nitrate and quinoline‐2‐carboxylic acid as linking ligand. Pb II exhibits a (O N distorted square planner geometry, where atom coordinates to two QCA ligands, according single crystal X‐ray diffraction . With packing structure , facing molecules are arranged in parallel planes joined multiple H‐bonds π‐π stacking form three‐dimensional network. NSC examined using variety structural characterization techniques well spectrum studies. Despite well‐documented toxicity lead, which is utilized various products, (QCA)2]n (NSC1) demonstrates considerable safety owing its stability, remaining unaffected degradation mediums, corroborated different So, under UV or ultrasonic wave conditions, it has been demonstrated that heterogeneous catalyst significant catalytic activity presence H O against breakdown indicated pollutants, indigo carmine (IC) phenol (Ph), very short times. Using disodium salt terephthalic acid, photoluminescence probing method applied ascertain reactive oxygen species reaction process mechanism.

Language: Английский

Citations

0
Choreoisosteres: Pseudoatom Variation in Macrocyclic Hinges Conserves Structure and Dynamics DOI Creative Commons
Alexander J. Menke, Joseph H. Reibenspies, Casey J. Patterson-Gardner

et al.

ACS Physical Chemistry Au, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Differing in pseudoatom, three macrocycles with isosteric substitutions (geminal dimethyl, cyclopropyl, cyclobutyl) can be described as choreoisosteres. Under ambient conditions, they share a dynamic hinge-like motion that fully revolute solution. The barriers to hinging, ΔG‡, are identical within experimental error: ΔG‡ = 14.2–15.2 kcal/mol judged by variable-temperature 13C NMR spectroscopy. Consistent conserved behavior and isosterism, other physical properties including hydrophobicity solution/membrane diffusion constants amenable prediction.

Language: Английский

Citations

0
Synthesis of Bis(dodecylammonium) Tetrachlorocuprate Using Ball Milling for Thermal Energy Storage DOI
Rebeca Salgado‐Pizarro, Jofre Mañosa, Camila Barreneche

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Language: Английский

Citations

0
Mechanochemistry for the Sustainable Synthesis of Organic Hole Transport Materials in Perovskite Solar Cells DOI Creative Commons
Bhausaheb Dhokale, Cavit Eyövge, Jędrzej Winczewski

et al.

Crystal Growth & Design, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Mechanochemical coupling reactions are typically single-site events that thermally driven, require an inert atmosphere, and kinetically slow under ball milling conditions. Here, we demonstrate the rapid 4-fold single-pot mechanochemical C–N of tetrabromopyrene phenothiazine leading to a novel pyrene-phenothiazine (PYR–PTZ) molecule is shown be effective hole-transport material (HTM) in perovskite solar cell (PSC). When compared previously reported reactions, mechanosynthesis PYR–PTZ achieved just 99 min ball-milling ambient conditions without glovebox or need for external heating. This represents advance over previous methods synthesis HTMs opens new avenues exploring discovery other organic PSC applications. The photophysics, crystal structure, electron transport properties HTM have been characterized using combination experimental density functional theory methods. In encapsulated PSC, photoconversion efficiency comparable widely used spiro-MeOTAD molecule, but stability superior naked after 4 weeks. work demonstrates value mechanochemistry sustainable at significantly reduced costs, opening up opportunities optoelectronics.

Language: Английский

Citations

0
Mechanochemical Synthesis of Pillar[5]arene‐based [c2]Daisy Chain Rotaxanes DOI Creative Commons
Boram Park, Iwona Nierengarten, Jean‐François Nierengarten

et al.

ChemistryEurope, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Abstract The solvent‐free mechanochemical acylation of pillar[5]arene‐based daisy chain monomers bearing either an alcohol or amine function has been investigated in details. These chemical transformations have also carried out solution for comparison purposes. Whereas stoppered [ c 2]daisy derivatives obtained from the monomer whatever conditions, could be only corresponding under conditions. In this particular case, concentration effects are clearly beneficial when reactions performed conditions as assemblies effectively present solid state despite very weak affinity 11‐hydroxy‐undecyl subunit pillar[5]arene moiety.

Language: Английский

Citations

0
Mechanochemical Nitration Studies of Aminotriazole Compounds DOI
Jie Zhou, Yang Zhao, Jiaheng Wang

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

In order to promote the green development of nitration process energy-containing materials and reduce environmental pollution resource waste caused by traditional reaction. We used a solvent-free mechanochemical reaction nitrify 3-amino-1,2,4-triazole 3,5-diamino-1,2,4-triazole successfully obtained 3-nitro-1,2,4-triazole 3,5-dinitro-1,2,4-triazole using sodium nitrite molybdenum trioxide as catalysts. Several parameters affecting were explored, structures products analyzed combining Gaussian, Multiwfn, other computational software; also, single crystals salt cultivated for their crystal structure surface properties, copper lead salts reacting with metal salts. The present work provides new idea materials.

Language: Английский

Citations

0
Impact of Ball Milling on the Microstructure of Polyethylene Terephthalate DOI Creative Commons

Ali Zaker,

Karine Auclair

ChemSusChem, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 7, 2024

Polyethylene terephthalate (PET) is a semi-crystalline polymer that finds broad use. Consequently, it contributes to the accumulation of plastics in environment, warranting PET recycling technologies. Ball milling commonly used technique for micronization before transformation. It has also recently been reported as an efficient mixing strategy enzymatic hydrolysis moist-solid mixtures. However, effect on microstructure not systematically investigated. Thus, primary objective this study characterize changes caused by various ball conditions. different forms was examined, including pre- and post-consumer PET, well textiles. The material treated range frequencies duration, analysis particle size, crystallinity differential scanning calorimetry powder X-ray diffraction, morphology electron microscopy. Interestingly, our results suggest convergence ~30 % within 15 minutes at 30 Hz. These are consistent with equilibrium between amorphous crystalline regions being established during milling. combined data constitutes reference guide research.

Language: Английский

Citations

0