Results 91 to 100 of about 173,009 (382)
Process for improving mechanical properties of epoxy resins by addition of cobalt ions [PDF]
, 1984 A resin product useful as an adhesive, composite or casting resin is described as well as the process used in its preparation to improve its flexural strength mechanical property characteristics.
St.clair, A. K., Stoakley, D. M.
core +1 more source
Advanced Materials Interfaces, EarlyView.Looking for a faster, cheaper way to measure surface area in graphene oxide (GO)? This refined single‐point spectrophotometric methylene blue adsorption method‐optimized for concentration, adsorption time, and methylene blue/graphene oxide ratiooffers a rapid, reliable, and low‐cost surface area characterization of GO.
Pei Lay Yap, Deyu Wang, Dusan Losic
wiley +1 more source
Unexpected Formation of Oxetanes during the Synthesis of Dodeco-6,7-diuloses
Molbank, 2020 During the synthesis of symmetrical dodeco-6,7-diuloses that are potential candidates for inhibition of glycosidases, an unanticipated epoxide-oxetane rearrangement was observed.
Marius Bayer +2 more
doaj +1 more source
Efficient routes to epimerically-pure side-chain derivatives of lanosterol [PDF]
, 2004 A technically simple route is described to individual epimers of side-chain derivatives of lanosterol (3-hydroxy-5-lanosta-8,24-diene). Epimerically pure 24,25-epoxy-, 24,25-dihydroxy- and 24-bromo-25-hydroxy-lanosterol have been prepared in good yield ...
Kavtaradze, Levan K. +2 more
core +2 more sources
Dielectric Barrier Discharge Electrothermal Heating and Additive Manufacturing of Thermoset Parts
Advanced Materials Technologies, EarlyView.3D printing of thermosets is difficult due to the low yield stress of most uncured resins. However, by locally heating resin using a non‐equilibrium plasma, layers can be partially cured and printing enabled. Plasma application to a liquid epoxy/carbon nanotube composite is observed to cause rapid surface heating and oxidation of the cured layers ...
Ethan M. Harkin +3 more
wiley +1 more source
Dual‐Wavelength Vat Photopolymerization With Dissolvable, Recyclable Support Structures
Advanced Materials Technologies, EarlyView.Selective solubility vat photopolymerization (SSVP) uses a single resin to produce dissolvable thermoplastics and insoluble thermosets in a single 3D print. Wavelength‐selective curing and thermal post‐processing provide 3D spatial control over dissolution kinetics, enabling dissolvable support structures and programmable dissolution profiles.
Nicholas S. Diaco +7 more
wiley +1 more source
Hydrogen-Bonding Interactions in T-2 Toxin Studied Using Solution and Solid-State NMR
Toxins, 2011 The structure of T-2 toxin in the solid-state is limited to X-ray crystallographic studies, which lack sufficient resolution to provide direct evidence for hydrogen-bonding interactions.
Paul Hazendonk +6 more
doaj +1 more source
Remodelling of the natural product fumagillol employing a reaction discovery approach [PDF]
, 2011 In the search for new biologically active molecules, diversity-oriented synthetic strategies break through the limitation of traditional library synthesis by sampling new chemical space. Many natural products can be regarded as intriguing starting points
Balthaser, Bradley R. +4 more
core +1 more source
Total syntheses of conformationally-locked difluorinated pentopyranose analogues and a pentopyranosyl phosphate mimetic [PDF]
, 2007 Trifluoroethanol has been elaborated, via a telescoped sequence involving a metalated difluoroenol, a difluoroallylic alcohol, [2,3]-Wittig rearrangement, and ultimately an RCM reaction and requiring minimal intermediate purification, to a number of ...
Miles, Jonathan A. L. +4 more
core +1 more source
Advanced Synthesis &Catalysis, EarlyView.A Ti(III) complex synthesized mechanochemically catalyzes the cycloaddition of CO2 (1 bar) with terminal, internal, and trisubstituted epoxides. Mechanistic studies by density functional theory calculations reveal that the superior activity of Ti(III) compared to Ti(IV) arises from its lower oxophilicity, facilitating CO2 insertion into Ti–O bonds, as ...
Elena Álvarez‐Ruiz +5 more
wiley +1 more source