The application of a modified Simon-Glatzel-type relation [Z. Anorg. Allg. Chem. 178, 309 (1929)] for the pressure evolution of the glass temperature is presented, namely, Tg(P)=Tg0[1+DeltaP/(pi+Pg0)]1/bexp[-(DeltaP/c)], where (Tg0,Pg0) are the reference temperature and pressure, DeltaP=P-Pg0, -pi is the negative pressure asymptote, b is the power exponent, and c is the damping pressure coeffic...

The adsorption of lead in aqueous solution onto Acrocomia aculeata pulp was examined. characterized the presence and absence using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TG-DTA), scanning electron microscopy (SEM). Sulfur oxygen bonds were responsible for adsorbing surface. TG-DTA profile proved that adding sodium azide increases pulp�s thermal stability unt...

This research investigates the effect of seawater different concentrations on hydration process and microstructure calcium sulphoaluminate (CSA) cement. It studies CSA cement pastes via experiments carried out to determine initial final setting times, mechanical strength chemical shrinkage with X-ray diffraction (XRD), scanning electron microscopy (SEM) simultaneous differential thermal-thermog...

N-[(1E)-(3-Bromophenyl)methylene]-N-(2-piperidin-1-ylethyl)amine Schiff base was prepared in good yield and characterized by the reflux of equivalent amounts of 2-(piperidin-1-yl)ethanamine with 3-bromobenzaldehyde. The structure of the desired Schiff base was analyzed based on: elemental analysis, EI-MS, TG/DTG, UV-visible, FT-IR, 1H and 13C-NMR spectral analysis. The condensation reaction was...