Cellulose Diacetate (IMAGE) Woods Hole Oceanographic Institution Caption A side-by-side microscopic image of cellulose diacetate foam before and after 36 weeks in seawater. The team found that cellulose diacetate foams lost 65-70% of their original mass. Credit Photo by: Bryan James, @Woods Hole Oceanographic Institution Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.