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Homopolymers and copolymers of lactones are prepared by
ring-opening polymerization of a mixture of lactones which includes
a monolactone, such as .epsilon.-caprolactone, and a dilactone,
such as bis-2,2-(.epsilon.-caprolacton-4-yl)propane, which is
capable of forming crosslinks. The resulting polymers range from
tough and partially crystalline to amorphous, elastomeric
materials, depending on the monomer composition and proportions.
Additionally, these polymers may be designed to achieve different
degrees of permeability and rates of biodegradation. As such, they
are useful for the controlled delivery of medicinal agents and as
surgical aids and temporary artificial biomaterials such as skin
substitutes and burn dressings.
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