Methyl acetate surface tension

The surface tension of mercury in the presence of the vapour at various partial pressures was measured by the drop weight method. The following values were obtained for the surface tensions of mercury in the presence of vapours of methyl acetate, water and benzene at various partial pressures at 26 —27° C. 

Fxpenmontal data have been published on the surface tension of methyl and ethyl acetate from 05C to the critical puint Data for butyl acetate arc available from I5C to hJX. " Sugilcn v method wa> used to calculate the surface Tension of butyl and vinyl acetate.v Up to the boiling point, this method gives errors of only a few percent,... 

This ratio is transformed to Fowkes equation when the polar term is negligibly small. Using Eq. (4) and experimental data on interfadal and surface tension of polymers, Wu calculated the polarity of some polymers. He estimates the contribution of the polarity to the surface tension of polymers to be considerable. Thus, for polylvinyl acetate) it takes up 33%, for poly (methyl methacrylate) 28%, and for polychloroprene 11%. 

In addition, one-phase smfactant-assisted chemical method has been utilized to synthesize PANI nanofiber, which was doped with CSA and 2-acrylamido-2-methyl-l-propanesulfonic acid, in large quantities [291]. A chemical oxidative polymerization of aniline has been carried out using ammonium peroxydisulfate as an oxidizing agent in the presence of nonionic surfactant. A precipitate of doped emeraldine salt is composed of PANI nanofiber, which has the diameter of 30-50 nm and exhibits the conductivity of 1 -5 S cm at RT. Another piece of research has been done through chemical oxidation polymerization of aniline in a surfactant gel, which was formed by a mixture of hexadecyltrimethylammonium chloride, acetic acid, anihne, and water at - 7 °C [292]. The dendritic PANI nanofiber has the diameter of 60-90 nm and the length of 1 -2 jim. Extended works have been performed by the electrospinning method [293]. It should be taken into account that PANI-CSA fiber shape could be influenced by the synthetic variables such as solvent, surface tension, viscosity, and solution conductivity. 

Combination of turbidity and conductivity, surface tension, Fourier-transformed infrared spectroscopy Nucleation during emulsion poljmierization of styrene, vinyl acetate, and methyl methacrylate continuous emulsion polymerization of methyl methacrylate, phase transition of polystyrene oligomers with Fourier-transformed infrared spectroscopy 93... 

Dragout is also a problem with those organic dean-ing solvents whose surface tension may ran from 31 (perchloroethylene) to 29 (trichloroethylene) dynes/cm, though somewhat less so with values around 24 dynes/cm (acetone and methyl acetate), and significantly less so with values around 14 to 15 dynes/cm (HFEs/HFCs/OSs). 

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