A recently developed procedure for alkylatiori of organic acids has proven extremely successful for preparation of volatile alkyl derivatives of the barbiturates for gas-chromatographic analysis. Soluble salts are formed in a mixture of N,N-dimethylacetamide and methanol. These in turn react rapidly with alkyl iodides to form the corresponding alkyl derivatives. The butyl derivatives of barbitu...

A chemo-mechanical method was used to prepare cellulose nanofibrils dispersed uniformly in an organic solvent. Poly(ethylene glycol) (PEG 1000) was added to the matrix as a compatibilizer to improve the interfacial interaction between the hydrophobic poly(lactic acid) (PLA) and the hydrophilic cellulose nanofibrils. The composites obtained by solvent casting methods from N,N-Dimethylacetamide (...

The extraction and separation of five different rare-earth elements, La, Nd, Eu, Dy Yb, from an aqueous chloride solution non-aqueous solutions using the solvating extractant Cyanex 923 was investigated. As previous studies had demonstrated potential solvent (NASX) to refine rare earths ethylene glycol, structural analogues glycol (1,2-propanediol 1,3-propanediol) other polar organic solvents (...

Abstract Although sufficient tolerance against attack by superoxide radicals (O 2 − ) has been mainly recognized as an important property for Li–O battery (LOB) electrolytes, recent evidence revealed that other critical factors also govern the cyclability, prompting a reconsideration of basic design guidelines LOB electrolytes. Here, we found LOBs equipped with N , N‐ dimethylacetamide (DMA)‐ba...

A water stable porous 3D metal-organic framework, [Cu3L2(μ3-OH)2(μ2-H2O)]·2DMA (1, mother crystal, H2L = 2,2'-dinitrobiphenyl-4,4'-dicarboxylic acid, DMA = N,N-dimethylacetamide), shows unprecedented irreversible solvent-induced substitutions of bridging aqua ligands and guest-exchanges in single-crystal-to-single-crystal (SCSC) transformations at room temperature (RT), producing quantitatively...

A new class of aryl trifluorovinyl ether monomers were designed and synthesized, and novel fluorinated polymers containing perfluorocyclobutane and 1H-1,2,3-triazole units were prepared from these monomers. These polymers were characterized by nuclear magnetic resonance spectroscopy, thermo-gravimetric analysis and differential scanning calorimetry. The temperatures of 5% weight loss of the pol...

Firstly, chitin was modified via ring-opening reaction with maleic anhydride in lithium chloride/ N,N-dimethylacetamide. Then, both chitin and chitin modified with maleic anhydride (CMA) were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) method, ultraviolet-visible (UV-Vis) spectroscopy, and scanning electron microscopy (SEM). Thermogravimetric analysi...

Microporous poly(vinylidene fluoride) (PVDF) membranes were prepared from PVDF/N,N-dimethylacetamide (DMAC) solutions by using upercritical CO2 phase inversion process. As revealed by scanning electron microscope (SEM) and differential scanning calorimeter (DSC), he PVDF membranes exhibit morphological characteristics resulting from both liquid–liquid phase separation and crystallization, i.e.,...

The recycling of cellulose from cotton textiles would minimize the use virgin crop fibers, but recycled polymers are generally inferior in mechanical performance to those made resins. This challenge prompted investigation biobased additives that were capable improving properties fibers by means antiplasticizing additives. In this study, regenerated (RC) spun found T-shirts, and mechanically str...