The photoinitiated copolymerization of styrenesulfonate with methacrylate monomers in hydrotropic medium

The photophysical determination of the minimum hydrotrope concentration of aromatic hydrotropes

“…1.0 M, in good agreement with the value determined from the I aggr /I monomol ratio considering the beginning of the plateau, as well as previous determinations [2,14]. Similar values were also obtained from conductivity experiments (0.72 M) and UV-light scattering (0.74 M)…”

“…The ratio between the vibronic bands of pyrene fluorescence, I 1 /I 3 , which measures the hydrophobicity of the microenvironment surrounding the probe, was also used to determine the point at which hydrotrope molecules aggregate to form more hydrophobic regions in the solution [1]. Reasonable correlations were also found for properties like conductivity and dynamic and static light scattering [2][3][4].…”