Interactions of an Anionic Surfactant with a Fluorescent-Dye-Labeled Hydrophobically-Modified Cationic Cellulose Ether

Threshold Temperature Sensors with Tunable Properties

“…Second, optical microscopy reveals that this return to green fluorescence is accompanied by the development of large dye aggregates in the blends (see Supporting Information). Increased self-quenching of excimer emission due to the formation of large aggregates has previously been found to cause increases in the ratio of monomer to excimer emission, [57][58][59][60][61] and a similar self-quenching effect in the large aggregates (which are only developed at temperatures well above T g ) appears to be responsible for the green color developed in the blends investigated here. The use of simple arrays comprising blends of different T g allows one to create sensor systems that provide an accurate account of thermal history within a selected temperature range (Figure 7).…”

Interactions of quaternary ammonium salt-type gemini surfactants with sodium poly(styrene sulfonate)

“…Pyrene has been used as a probe of interactions between surfactant and polymer [20][21][22]. The shape and intensity of the fluorescence emission of this probe are sensitive to its microenvironment at the site of solubilization of the fluorophore.…”

Cleaner approach in leather dyeing using graft copolymer as high performance auxiliary: related kinetics and mechanism

“…Literature also reveals similar relationship when chitosan and other protein particles were used in dyeing (Kyzas et al, 2010;Yu et al, 2002;Yurekli et al, 2005;Winnik et al, 1997;Blackburn, 2004). The study on the effect of laponite and a nonionic polymer on the absorption character of cationic dye solutions showed a similar trend.…”