Effect of Supercritical CO₂ on Polymer Properties

Abstract

When CO₂ is dissolved into a polymer, several polymer properties are drastically changed. In this article, solubility and diffusivity of CO₂ in several molten state thermoplastics as well as some rubbers are discussed. In addition to illustrating the solubility and diffusivity data of CO₂ into polymers, the data of CO₂ induced depression of glass transition temperature as well as viscosity are introduced.