Cellulose acetate
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Cellulose acetate
Cellulose acetate is a polymer of B-1,4 linked glucose with acetate replacing the glucose's hydroxyl (OH) groups. For a high strength bioplastic polymer all three hydroxyl groups (C2, C3, C6) are replaced with acetate resulting in cellulose triacetate. Cellulose acetate with a lower degree of substitution can absorb water and has other applications. Cellulose acetate can be made by reacting cellulose biomass with acetic anhydride and an acid catalyst. Cellulose acetate has good optical and packaging characteristics but is not very durable. The positive flip side of that is that it is very well biodegradable.