ABSTRACT

I. INTRODUCTION Electro-optics is abundantly used in the investigation of the electrical prop­ erties of macromolecules and colloid particles dispersed in solution [1-3]. The electro-optical signal contains also information on the shape and size of the particles investigated, which makes this method useful for studying the stability of colloids in the presence of various additives. Electric bire­ fringence and electric dichroism are extensively used to determine the con­ formations of biopolymers and their complexes with various low molecular compounds in solution. Many other applications of electro-optics for study­ ing colloids and polymer solutions are shown in the literature, but the in­ formation on using this technique for studying mixed colloid-polymer sys­ tems is small.