Results 41 to 50 of about 204,771 (175)

Titanium‐Catalyzed Defluorination of Poly(Vinyl Fluoride) and Poly(Vinylidene Fluoride) Under Friedel–Crafts Conditions

open access: yesAngewandte Chemie, EarlyView.
Cationic titanium sandwich catalysts display exceptional activity in the hydrodefluorination of Csp3─F bonds, in the presence of silanes and aromatic solvents (turnover numbers up to 3000). As a result, they can be used to defluorinate challenging fluoropolymers, such as poly(vinyl fluoride) (PVF) or poly(vinylidene fluoride) (PVDF).
Louis Le Moigne   +9 more
wiley   +2 more sources

Chemistry of novel fluorinated alkenes [PDF]

open access: yes, 1986
The work described in this thesis is concerned with three areas relating to nueleophilic reactions of novel-polyfluorinated alkenes-. a) Very highly strained fluorinated epoxides have been synthesised from bicyclic internal alkenes using Ca(OCl)(_2 ...
Bayliff, Andrew E.
core  

Gas Chromatographic evaluation of hydrocarbon degradation capabilities of Phyllosphere-derived Bacteria in simulated bioremediation of contaminated soil

open access: yesUMYU Journal of Microbiology Research
Monitoring hydrocarbon degradation is critical to assessing environmental pollution and the effectiveness of bioremediation strategies. Phyllosphere bacteria residing on plant surfaces have been shown to play a vital role in breaking down hydrocarbons ...
Baha’uddeen Salisu   +3 more
doaj   +1 more source

Energetic and Exergetic Analysis of Low Global Warming Potential Refrigerants as Substitutes for R410A in Ground Source Heat Pumps

open access: yesEnergies, 2019
In the European Union (EU), buildings are responsible for about 40% of the total final energy consumption, and 36% of the European global CO2 emissions.
Sergio Bobbo   +10 more
doaj   +1 more source

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

open access: yesAdvanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen   +9 more
wiley   +1 more source

In Vitro Selection of Functional Neoproteins Containing Highly Fluorinated Cores

open access: yesAngewandte Chemie, EarlyView.
The generation of neoproteins—functional proteins containing unnatural amino acids—is a key goal in synthetic biology. We develop a platform to discover neoproteins with specified bioactivity from trillion‐member sequence libraries, using genetic code reprogramming, in vitro selection and microwave peptide synthesis.
Adam Beattie   +5 more
wiley   +2 more sources

Unlocking the reducing power of metal nitrides by mechanochemical hydrodefluorination of fluorinated compounds

open access: yesNature Communications
The carbon-fluorine (C–F) bond, present in both aromatic C(sp2)–F and aliphatic C(sp3)–F moieties, possesses an exceptionally high bond energy. This inherent stability renders C–F bond activation highly challenging.
Jun-Shen Chen   +3 more
doaj   +1 more source

A Modular Standard Operating Procedure for Standardizing Lithium Metal Interfaces

open access: yesAdvanced Science, EarlyView.
A modular standard operating procedure (SOP) is developed to standardize lithium metal interfaces through sequential etching, brushing, and soaking. By transforming poorly controlled lithium surfaces into chemically uniform and structurally regulated interfaces, the framework improves electrochemical reproducibility, interfacial stability, and ...
Wen‐Hsin Chang   +7 more
wiley   +1 more source

Intramolecular Nickel‐Catalyzed Reductive Coupling: Enantioselective Synthesis of Tetrahydroisoquinolines and Related Heterocycles

open access: yesAngewandte Chemie, EarlyView.
The successful extension of the nickel‐catalyzed asymmetric coupling of polarized 1,3‐dienes with aldehydes to an intramolecular setting opens an efficient new entry into hydroxylated N‐heterocyclic compounds, most notably valuable tetrahydroisoquinolines.
Thilo Bender   +3 more
wiley   +2 more sources

Co-Pyrolysis of polystyrene and polytetrafluoroethylene: Effects on mass balancing, product distribution and degradation mechanism

open access: yesFuel Processing Technology
Plastic waste generation continues to rise globally, increasing the need for advanced recycling technologies such as pyrolysis. However, the synergistic interactions during co-pyrolysis of mixed plastic streams, particularly those involving dissimilar ...
Lukas Eigenschink   +4 more
doaj   +1 more source

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