  Thermal behaviors of hydroxypropyl cellulose dilute aqueous solutions with
impurities of Group I alkali metal ions (Li, Na, K, Rb and Cs chlorides) has
been studied by means of static and dynamic light scattering measurements. From
the experimental data, it follows that at temperatures above the LCST and in
the presence of salts, there arise supramolecular associates (clusters) that
are several times larger than the wavelength of visible light. It is shown that
the observed intensity of backscattered light is described by the tangent plane
approximation and the Mie scattering theory.
