A brief overview of properties and reactions of diisocyanates.

By way of introduction to the special issue on d iisocyanates and their corresponding diamines , this brief overview presents, for the most commonly used diisocyanate monomers, a selection of physical-chemical properties that are relevant to exposure in the workplace and in the general environment, as well as a concise overview of diisocyanate reactions and some of their toxicological implications.