Physico-chemical properties of sulfur : III. Dissolved state of sulfur polymers in liquid sulfur

Abstract

The molecular weights of sulfur polymers have not been measured until now because there was no proper solvent for them. Therefore, there is no report concerning the exponent of the intrinsic viscosity-molecular weight relationship of sulfur polymers in liquid sulfur. Nevertheless, the author found a method which could assume the exponent without measuring the molecular weight of sulfur polymer. He obtained satisfactory results by applying this method to the data which referred to the viscosities of liquid sulfur, already reported by the author is this journal. The exponent obtained for sulfur polymer, in the temperature range 120 to 150℃, lies between 0.4 and 0.7 and is dependent on the temperatures of the viscosity determinations and increases gradually with temperature.