The Radiation Initiated Polymerization of Styrene

Abstract

<p> The polymerization of styrene to polystyrene was studied using gamma radiation from a Co^60 source as the free radical initiator. Conversions up to 50% were obtained and the molecular weight distribution, intrinsic viscosity, bulk viscosity, and osmotic pressure of several samples were measured. A theoretical kinetic model was developed using a slightly modified conventional kinetic scheme and employing a viscosity correction for the termination rate constant. The model predicts conversion over the range studied and molecular weight distributions are in agreement within the limitations of the experimental equipment to measure this parameter.</p>