Graft copolymerization of acryl-amide onto guar-gum has been carried out in the presence of potassium per sulphate as a redox initiator. The prepared graft copolymer was characterized by various techniques such as FT-IR, SEMEDX and TGA-DTA-DTG. Activated charcoal was also studied as the adsorbent in the present study to evaluate their adsorption capacity for Cr (Vl) and compared it with indigen...

The [Co(Me(2)Salen)(PBu(3))(OH(2))]BF4 and [Co(Me(2)Salen)(PPh(3))(Solv)]BF(4), complexes were synthesized and characterized by FT-IR, UV-Vis, (1)H NMR spectroscopy and elemental analysis techniques. The coordination geometry of [Co(Me(2)Salen)(PPh(3))(H(2)O)]BF(4) was determined by X-ray crystallography. It has been found that the complex is containing [Co(Me(2)Salen)(PPh(3))(H(2)O)]BF(4) and ...

The mechanical stability is an important phenomenon which governs many applications based properties of membranes. The inorganic materials of membrane may have been synthesized by qualitative the novel sol-gel or co-precipitation methods of material synthesis. The mMembranes of cobalt (CP) and nickel (NP) composites have been was designed by mixing of the polyvinyl chloride (PVC) with cobalt ph...

Telah dilakukan sintesis dan karakterisasi aspal yang dimodifikasi dengan karbosil silika. Penelitian ini untuk mengetahui mikrosuktur struktur komposit silika perbandingan komposisi berat yaitu 50:50:0; 42,5:42,5:15; 40:40:20; 37,5:37,5:25; 35:35:30; 32,5:32,5:35. Silika diperoleh menggunakan metode alkalis pirolisis. Hasil analisis XRD fasa terbentuk dari setiap variasi adalah amorf. Analisis...

The current work aims to develop environmentally friendly plastic materials by preparing a composite polypropylene/thermoplastic starch (PP/TPS) using melt-compounding process. In order improve the compatibility of two naturally incompatible polymers, natural Stipa tenacissima fibers treated on their surfaces and polypropylene (PP) pellets grafted with Maleic Anhydride (MA) were added mixture (...

Abstract The aim of the presented research was to evaluate antimicrobial, anti-tuberculosis and antioxidant activity thiosemicarbazone derivatives. thermal stability degradation nineteen compounds were determined. results obtained in vitro tests indicate potential selected against Staphylococcus aureus , epidermidis Mycobacterium tuberculosis . Some turned out be active free radical scavengers ...

INTRODUCTION Acute kidney injury (AKI) after cardiac surgery increases length of hospital stay and in-hospital mortality. A significant number of patients undergoing cardiac surgical procedures require perioperative intra-aortic balloon pump (IABP) support. Use of an IABP has been linked to an increased incidence of perioperative renal dysfunction and death. This might be due to dislodgement of...

The aim of this research is characterization the calcite raw material from two microlocalities: Sušički Most and Gorna Banjica near Gostivar. properties materials were defined applying complex examinations. XRD analysis determined presence dolomite as basic mineral phases, which was confirmed by optical transmission microscopy. dominant content CaCO3 chemical analysis. ICP-AES a high degree pur...