Design and synthesis of the poly vinyl chloride (PVC) membrane as Fe(III) ion selective electrode (ISE) sensor based on EHA ionophore an excellent sensory molecule for monitoring in sample solution had been done. Simple efficient was made by condensation carboxylic acid HA with ethanol sulfuric catalist. PVC prepared mixed all component such powder, EHA, plasticizer (o-NPOE DOP) anion lipophili...

In order to describe iron stability in plastic pipes and to ensure the drinking water security, the influence factors and rules for iron adsorption and release were studied, dependent on the Unplasticized poly (vinyl chloride) (PVC-U) drinking pipes employed in this research. In this paper, sulfate, chloride, and bicarbonate, as well as synthesized models, were chosen to investigate the iron st...

In electrochemical sensing devices, aimed for acute and chronic in vivo application, the active surface of the sensor is often negligible compared to the overall surface area of the device in contact with the biological host. Consequently, to minimize the perturbation of an implanted sensor on the in vivo environment the chemical composition and surface texturing of the complete device (the act...

Organized mesoporous TiO₂ Bragg stacks (om-TiO₂ BS) consisting of alternating high and low refractive index organized mesoporous TiO₂ (om-TiO₂) films were prepared to enhance dye loading, light harvesting, electron transport, and electrolyte pore-infiltration in dye-sensitized solar cells (DSSCs). The om-TiO₂ films were synthesized via a sol-gel reaction using amphiphilic graft copolymers consi...

Conducting polymers, also known as ‘‘synthetic metals’’, have been the subject of wide-spread investigations over the past decade due to their very promising characteristics. It was published earlier that the electrical conductivity of polyaniline (PANI) based polymer composites increases to a significant extent when irradiated to gamma, electron or UV radiation. The aim of the present study wa...

This work reports and discusses the influence of four phosphonium-based ionic liquids (PhILs), namely trihexyl(tetradecyl) phosphonium dicyanamide, [P(6,6,6,14)][dca]; trihexyl(tetradecyl) phosphonium bis(trifluoromethylsulfonyl)imide, [P(6,6,6,14)][Tf(2)N]; tetrabutyl phosphonium bromide, [P(4,4,4,4)][Br]; and tetrabutyl phosphonium chloride, [P(4,4,4,4)][Cl], on some of the chemical, physical...

Trenchless rehabilitation lining can be divided into flexible solid wall structures, rigid structures and rigid–flexible composite structures. This paper reviews the research status of design theory trenchless pipes, analyzes points out that value factor determined from non-grouting angle K1 is not clear in formula structure mentioned ASTM ‘Standard Practice for Installation Machine Spiral Woun...

Seaweed antibacterial polysaccharides were grafted onto poly(vinylchloride) (PVC) surfaces using an original click chemistry pathway. PVC isothiocyanate surfaces (PVC-NCS) were first prepared by nucleophilic substitution of the chloride groups by isothiocyanate groups in DMSO/water medium. Then, unmodified Ulvan, Fucan, Laminarin or Zosterin was directly grafted onto the PVC-NCS surface using 1...