This article examines how supercritical carbon dioxide technologies can be used to create a wide range of cellulose acetate structures with controlled properties. Focusing on supercritical antisolvent precipitation and supercritical fluid-assisted phase inversion, the study investigates how processing conditions, solvent selection, pressure, temperature, and polymer concentration influence the formation of cellulose acetate nanoparticles, microparticles, nanostructured filaments, and porous membranes.

This article provides a comprehensive overview of the key properties that make cellulose acetate, particularly commercially important cellulose diacetate, a versatile material across numerous applications. It explains how the degree of acetylation influences essential characteristics such as solubility, chemical resistance, density, optical performance, thermal behavior, and processability.