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 chapter reviews the conversion of cellulose into cellulose acetate and examines the production, properties, and applications of electrospun cellulose acetate nanofibers. It discusses methods for synthesizing cellulose acetate, factors influencing nanofiber fabrication, and the material’s key characteristics, including thermal behavior, mechanical performance, biodegradability, and biocompatibility.

This article explores the development of a novel cellulose acetate-based hybrid membrane designed for blood purification applications such as hemodialysis. By combining cellulose acetate with silica and amine-functionalized silica through an innovative phase inversion and sol-gel process, the study aims to improve membrane performance while maintaining the inherent advantages of cellulose acetate.