solubility

Emeraldin salt of polyaniline was synthesized by chemical oxidative polymerization method; this salt is soluble in common organic solvents. The obtained results are discussed with reference to lactic acid doped polyaniline. It has been observed that acrylic acid doped polyaniline is comparatively more soluble than polyaniline doped with lactic acid in common organic solvent such as m-cresol, NMP (N-methyl pyrrolidinone), DMSO, DMF, etc. The acrylic acid doped polymer prepared using lactic acid is comparatively more soluble in m-cresol and NMP than the polyaniline without acrylic acid.

The vegetable oil based emulsifiers represent a remarkable potential in the petroleum industry. In the chemical enhanced oil recovery (EOR) the application of the nonionic surfactants have a growing importance as a biodegradable type additive. The aim of our work is to prepare a simple and rapid instrumental measurement that could be used in the industrial practice and would be suitable to control the water solubility of the surfactants produced for EOR technologies by using of the available AvaSpec fiber optic spectrophotometer.