Results 211 to 220 of about 336,953 (243)

Upcycling of Waste Poly(ethylene terephthalate) : Ammonolysis Kinetics of Model Bis(2‐hydroxyethyl terephthalate) and Particle Size Effects in Polymeric Substrates

open access: yesChemSusChem, Accepted Article.
Upcycling of poly(ethylene terephthalate) (PET) through ammonolysis is pursued. Model studies on bis(2‐hydroxyethyl) terephthalate (BHET) reacting with ammonia in excess ethylene glycol (EG) to form terephthalamide (TPD) are presented. Sequential ester conversion is characterized by the pseudo reaction rate constants of = 1.02±0.09 h‐1 and = 0.44±0.08 ...
Richard-Joseph L. Peterson   +4 more
wiley   +1 more source

Cascade Electrocatalytic Conversion of CO2 to C3 Products at Elevated Pressures

open access: yesChemSusChem, Accepted Article.
Recent progress in the electroreduction of CO2 has led to notable breakthroughs in generating C2 compounds such as ethylene and ethanol. Nevertheless, the direct formation of C3 products encounters significant limitations due to the C2–C1 coupling reaction, posing a considerable challenge to improving their faradaic efficiency.
Nandalal Girichandran   +4 more
wiley   +1 more source

Screening and Quantification of the Synthetic Cannabinoid Receptor Agonist 5F‐MDMB‐PINACA From Seized Prison Paper Using Ultraperformance Liquid Chromatography–Mass Spectrometry Approaches

open access: yesDrug Testing and Analysis, EarlyView.
Synthetic cannabinoid receptor agonists are being infused on paper and illicitly introduced into prisons through mail correspondence. An approach to quantify and map the synthetic cannabinoid 5F‐ADB on a seized paper sample from a UK prison was determined using ultraperformance liquid chromatography–quadrupole Dalton–mass spectrometry.
Giorgia Vaccaro   +4 more
wiley   +1 more source

The lungs of the finch: three-dimensional pulmonary anatomy of the zebra finch (<i>Taeniopygia castanotis</i>). [PDF]

open access: yesPhilos Trans R Soc Lond B Biol Sci
Martinez A   +4 more
europepmc   +1 more source

Effects of joint geometric configurations on cyclic shear behavior of intermittent joints under constant normal stiffness conditions

open access: yesDeep Underground Science and Engineering, EarlyView.
The present manuscript explored the effects of joint configurations on the cyclic shear behavior of intermittent joints for the first time. The cyclic shear response, shear strength degradation, dilation characteristics evolution, frictional property, fractal dimension, and dissipative energy were further analyzed during shear cycles, which is crucial ...
Bin Wang   +3 more
wiley   +1 more source

Wild Birds' Genetic Resources Bank: Feather Follicle Cell Culture as a Possible Source of Stem Cells. [PDF]

open access: yesMethods Protoc
Reis YGD   +7 more
europepmc   +1 more source

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