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Appl Environ Microbiol. 1968 June; 16(6): 900-905
Copyright © 1968 American Society for Microbiology. All Rights Reserved.

Fungal Susceptibility of Polyurethanes

Pioneering Research Laboratory, U.S. Army Natick Laboratories, Natick, Massachusetts 01760

ABSTRACT

One hundred laboratory-synthesized polyurethanes were tested by a mixed-culture petri dish method for susceptibility to fungus attack. Polyether polyurethanes were moderately to highly resistant to fungal attack, whereas all polyester polyurethanes tested were highly susceptible. The susceptibility of the polyethers was related to the number of adjacent methylene groups in the polymer chain. At least two such groups were required for appreciable attack to occur. The presence of side chains on the diol moiety of the polyurethane reduced susceptibility.