The Co(II) atom in the title complex, {[Co(C(10)H(8)N(2))(H(2)O)(4)](C(8)H(4)O(4))}(n), is coordinated by two N atoms of two bipyridine ligands and four O atoms of four water mol-ecules in an octahedral geometry. The one-dimensional [Co(C(10)H(8)N(2))(H(2)O)(4)](2+) cation chain is further extended into a supra-molecular network via O-H⋯O hydrogen-bond inter-actions. The Co atom lies on a twofo...

Two different procedures of grafting with silver nanoparticles (AgNP) of polyethylene terephthalate (PET), activated by plasma treatment, are studied. In the first procedure, the PET foil was grafted with biphenyl-4,4'-dithiol and subsequently with silver nanoparticles. In the second one, the PET foil was grafted with silver nanoparticles previously coated with the same dithiol. X-ray photoelec...

Abstract Background The world today is faced with the humongous challenge of removing numerous plastic wastes in our environment. Efforts removal or remediation these materials from ecosystem are presently at budding stage. Some researchers have shown that certain bacterial enzymes ability to hydrolyze and further degrade compounds. In this study, PET hydrolase enzyme polyvinylchloride, polyure...

In this study, dyeing of two regenerated polyester fibers, poly-trimethylene terephthalate (PTT) and poly-lactic acid (PLA), with natural dyes were compared with that of poly-ethylene terephthalate (PET) fiber. Lac was used as the primary natural colorant while Catechu was chosen as a natural color that can also act as a biomordant. The effects of temperature, initial pH of dye bath and dyeing ...

In this work, poly(lactide-co-trimethylene carbonate) and polylactide/ polytrimethylene carbonate films are prepared using a film blowing method. The process parameters, including temperature and screw speed, are studied, and the structures and properties of the P(LA-TMC) and PLA/PTMC films are investigated. The scanning electron microscope (SEM) images show that upon improving the content of T...

We present the results of an experimental study pulse electrical strength polyethylene terephthalate and polypropylene films when they are subjected to a single electric pulse. It has been found that breakdown these is possible both at front plateau pulse, probability increases with amplitude. recorded jump in durability transition from plateau. shown processes prepare film develop faster pulse...

pet wastes from post consumer bottles can be chemically degraded into some compounds such as oligomers and some monomers such as bishydroxy ethyl terephthalate(bhet)by some catalysts(zn, co, pb and mn acetates) in ethylene glycol at 189 oc under n2 atmospheric pressure. the compounds obtained in the chemical depolymerization can be used as plasticizers in paint, fibbers, rubbers and plastic ind...