Two solvent-controlled topological isomers of scandium-organic frameworks [Sc(Hpzc)(pzc)]·DMF·2H2O (1·DMF·2H2O) and [Sc(Hpzc)(pzc)]·DMA·4H2O (2·DMA·4H2O) were synthesized using 2,5-pyrazinedicarboxylate (pzc2-) (DMF = dimethylformamide; DMA dimethylacetamide). Despite the isomeric nature obtained metal-organic (MOFs), they possess different structural features unique adsorption properties towar...

A new class of PVDF-based membranes suitable for membrane distillation were prepared via electrospinning. The classical fiber morphology PVDF electrospun was changed to generate a beaded structure by tuning the solvent ratio and operating parameters during fabrication. Results showed that increasing N, N-Dimethylacetamide (DMAC) acetone used prepare solution, micron-sized beads can be created w...

OBJECTIVES N,N-Dimethylacetamide (DMAC) is widely used in industry as a solvent. It can be absorbed through human skin. Therefore, it is necessary to determine exposure to DMAC via biological monitoring. However, the precision of traditional gas chromatography (GC) is low due to the thermal decomposition of metabolites in the high-temperature GC injection port. To overcome this problem, we have...

The murine-virus-infected erythroleukemia cell system provides an opportunity to examine regulatory mechanisms controlling cytodifferentiation. A cloned cell line (DR10c3) resistant to the erythropoiesis-inducing effect of dimethylsulfoxide (Me2SO) was isolated from the Me2SO-sensitive line DS19. DR10c3 is characterized as follows: (1) the uptake of [3H]Me2SO is similar to that in DS19; (2) cel...

A series of novel aromatic polyamides with pendent 4,40-dimethoxy-substituted triphenylamine (TPA) units were prepared via the direct phosphorylation polycondensation from a new dicarboxylic acid monomer, N,N-bis(4-carboxyphenyl)-N0,N0-di(4-methoxyphenyl)-1,4-phenylenediamine (4), and various aromatic diamines. These polyamides were amorphous with good solubility in many organic solvents, such ...