Abstract The aim of the article was to determine compressive strength and strain an unmodified a modified epoxy compounds containing montmorillonite filler, as well effect temperature aging time on mechanical parameters considered compounds. subject research both adhesive were made in four variants, which included resins based bisphenol A curing agents: triethylenetetramine polyamide agent. als...

A suitable method to functionalize the surface of polyethylene terephthalate (PET) consists in the chemical treatment with different amines such as triethylenetetramine (TETA), or tetraethylenepentamine (TEPA). The paper describes the influence of PET surface amination on the mechanical and water-sorption properties. Superficial chemical treatment involves micro-structural changes such as molec...

Changes in macromolecular mobility during the thermal oxidation of epoxy-amine thermoset networks are addressed this study. Three systems, cured with DGEBA and three similar aliphatic hardeners – ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA) aged at 160°C characterized by dynamic mechanical analysis (DMA). Results show a split single initial α relaxation peak agi...

Two C₂-symmetrical dipyrrole-polyamide dimers 2 and 3 that were tethered with triethylenetetramine and spermine, respectively, and their corresponding Cu(II) complexes 2@Cu(2+) and 3@Cu(2+), were synthesized and fully characterized. Agarose gel electrophoresis studies on pBR322 DNA cleavage indicated that both Cu(II) complexes exhibited potent DNA-cleaving activities under physiological conditi...

Divalent metal transporter-1 (DMT1) is a divalent cation transporter that plays a key role in iron metabolism by mediating ferrous iron uptake across the small intestine. We have previously identified several small molecule inhibitors of iron uptake (4). Using a cell line that stably overexpresses DMT1, we screened the ability of these inhibitors to specifically block this transporter's activit...

Reaction pathway investigations of the solvothermal preparation of nanocrystalline Culn1xGa xSe2 in triethylenetetramine reveal the early formation of a previously unreported CU2-xSe(S) intermediate. Over 24 hours, this reacts with In and Se species to form CulnSe2(s). If Ga is present, the reaction proceeds over an additional 48 hours to form Culn1xGa xSe2. Adding ammonium halide salts reduces...