Two types of photoinitiator are considered: (1) transition metal complexes (mainly carbonyls), (2) chelates of transition metals. In systems of type (1) the metal is in a low oxidation state and an organic halide is generally, but not always, present; on thc other hand, in (2) the metal is initially in a high oxidation state. Comparison between photoand thermal-initiation is made for each type....

Normal and sickle cell erythrocyte membranes were examined for significant differences in their ATPase activities, thiobarbituric acid reactive products formed (measured relative to malondialdehyde), membrane protein polymerization, and number of protein-free sulfhydryl groups when treated with 0.5 mmol/L t-butylhydroperoxide (tBHP) for 30 minutes. Isolated sickle cell membranes treated with tB...

Dissolved organic matter (DOM) is a complex mixture of naturally occurring molecules originating from multiple marine and terrestrial sources. DOM plays significant role in water quality by affecting the photochemistry, trace metal transport, acidity aquatic systems. Understanding chemical composition helps interpret links between its optical properties molecular structures. Currently, origins ...

This study reports the synthesis of soluble polyaniline by oxidation polymerization method with various dopants HCl, H2SO4, and Fumaric acid (FA). dopant variation is carried out to obtain optimum solubility electrical conductivity. The results FTIR characterization showed several characteristic bonds from samples that had been synthesized. PANi/FA a concentration 1M has best compared PANi/HCl ...

Graphene oxide is obtained by oxidation of graphite followed ultrasonic exfoliation. It a two-dimensional layered material with large number oxygen-containing functional groups on its surface. Polyaniline conductive polymer and has unique corrosion protection mechanism. In this study, carboxy-functionalized graphene oxide/polyaniline (CGO/PANI) composites lamellar structure were prepared in sit...

Insulation cellulose paper is a basic measure for power transformer’s remaining useful life, and its advantageous low cost, electrical, mechanical properties have made it an extensive insulation system when impregnated in dielectric liquid. Cellulose deteriorates as result of ageing due to some chemical reactions like pyrolysis (heat), hydrolysis (moisture), oxidation (oxygen) that affects degr...