This article investigates the biodegradability of cellulose diacetate, the most widely used form of cellulose acetate, in freshwater and marine environments using standardized laboratory simulation methods. Motivated by ongoing discussions about cellulose acetate’s role in litter and microplastic pollution, particularly from cigarette filters, the study evaluates how cellulose diacetate behaves in freshwater, seawater, and seawater-sediment systems.

This article provides a comprehensive overview of the biodegradation behavior of cellulose acetate, with a particular focus on cellulose diacetate, the most widely used commercial grade. It examines how cellulose acetate degrades under a range of environmentally relevant conditions, including freshwater, seawater, marine sediment, soil, composting systems, and anaerobic environments.

This article examines cellulose acetate’s position within the broader polymer landscape and evaluates its potential as a sustainable biopolymer. It reviews the environmental and policy drivers behind the growing interest in bio-based materials and compares cellulose acetate with other biopolymers and conventional plastics across key sustainability criteria, including feedstock sourcing, energy and water use, greenhouse gas emissions, biodegradability, environmental impacts, and economic considerations.

This review examines how cellulose derivatives, including cellulose acetate, degrade in laboratory tests as well as in natural and managed environments such as compost, soil, freshwater, seawater, wastewater, and sewage sludge. The article brings together current knowledge on the mechanisms that govern degradation, including biodegradation, hydrolysis, photodegradation, and oxidation, while exploring how chemical modification affects the environmental fate of cellulose-based materials. Particular attention is given to cellulose acetate because of its widespread use and the strong influence of its chemical structure on degradation performance.

This article explores how foaming can enhance the sustainability performance of cellulose acetate by creating lightweight, porous cellulose diacetate (CDA) materials that use less material while degrading more rapidly in marine environments.

This article investigates the environmental degradation of cellulose diacetate (CDA), a widely used form of cellulose acetate, in marine conditions. Using films, fibers, and foam materials exposed to flowing natural seawater, the study examines how native microbial communities colonize and break down CDA over time.

This article investigates a novel approach to improving the degradability of cellulose acetate by embedding immobilized lipase enzymes directly within the material. Recognizing that deacetylation is the key step limiting cellulose acetate biodegradation, the authors developed cellulose acetate films containing enzyme-loaded cellulose acetate particles and studied their behavior during enzymatic aging, simulated composting, and exposure to water.