Degradation of cellulose derivatives in laboratory, man-made, and natural environments

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.

The review concludes that the degree and type of chemical substitution are key factors controlling the degradation of cellulose acetate. In general, biodegradation becomes more difficult as the degree of substitution increases, although the degradation rate also depends heavily on the surrounding environment. The authors highlight that composting conditions typically promote faster degradation than soil or aquatic environments and emphasize that material design should be aligned with the intended end-of-life pathway, whether recycling or biodegradation. These findings are highly relevant for product development, sustainability assessments, and regulatory discussions, as they demonstrate the importance of balancing performance requirements with responsible end-of-life management when developing future cellulose acetate materials.

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