Results 101 to 110 of about 2,332 (255)

Cobalt–Oxygen Bond Homolysis in the Bench‐Stable (Salen*)Cobalt(III) Acetate Complex: Insight into the Organometallic Mediated Radical Polymerization of Diverse Monomers

open access: yesMacromolecular Chemistry and Physics, EarlyView.
The air‐stable [(Salen*)Co(OAc)] complex initiates the radical polymerization of vinyl monomers via Co–O bond homolysis, distinguishing it from classical air‐sensitive cobalt complexes relying on Co‐C bond cleavage. Accordingly, MMA polymerization proceeds via catalytic chain‐transfer while MA undergoes controlled OMRP involving two distinct initiation
Maxime Michelas   +5 more
wiley   +1 more source

Synthesis of High Molecular Weight Isocyanate‐Free Polyurethanes by Transurethanization of Dimethyl Carbamate With Mixtures of Long and Short Chain Diols

open access: yesMacromolecular Chemistry and Physics, EarlyView.
High molar mass non‐isocyanate polyurethanes were prepared by transurethanization of dimethyldodecane‐1,12‐diyldicarbonate with various long and short diols in the presence of potassaium alkoxide. ABSTRACT Due to sustainability challenges associated with conventional polyurethanes (PUs), non‐isocyanate polyurethanes (NIPUs) synthesized via ...
Nichollas G. Jaques   +5 more
wiley   +1 more source

Status of the cooler synchrotron Cosy-Juelich [PDF]

open access: green, 2004
D. Prasuhn   +13 more
openalex   +1 more source

α‐Methoxy Benzaldehyde Based Photopolymers as a Promising Toolbox for Architected Carbon

open access: yesMacromolecular Rapid Communications, EarlyView.
The photo‐induced Diels–Alder step‐growth polymerization of difunctional α‐methoxy benzaldehyde and bismaleimide precursors affords photopolymers shaped into microspheres that are ideally suited for the formation of tailored carbon geometries. Stable carbonized microspheres with close to 60% char yield and 33% shrinkage can be readily formed at a ...
Kjetil Baglo   +4 more
wiley   +1 more source

Online Coupling of 80 MHz Benchtop 2D‐COSY NMR to HPLC

open access: yesMacromolecular Rapid Communications, EarlyView.
The online coupling of 2D‐NMR to HPLC is demonstrated for the first time with benchtop NMR. COSY spectra of parabens are recorded at 80 MHz, with stop‐flow (with short stops at analyte peaks and in baseline), at slow‐flow (with lower, constant flow rate over the analytes elution range) and steady‐flow (at constant flow rate throughout the experiment ...
Marianne Gaborieau   +4 more
wiley   +1 more source

Origin and characterization of cyclodepsipeptides: Comprehensive structural approaches with focus on mass spectrometry analysis of alkali‐cationized molecular species

open access: yesMass Spectrometry Reviews, EarlyView.
Abstract Cyclodepsipeptides (CDPs) represent a huge family of chemically and structurally diverse molecules with a wide ability for molecular interactions. CDPs are cyclic peptide‐related natural products made up of both proteinogenic and nonproteinogenic amino acids linked by amide and ester bonds.
Sophie Liuu   +10 more
wiley   +1 more source

Artifacts in COSY

open access: hybrid, 1990
Christopher J. Turner
openalex   +1 more source

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