Abstract: The present invention relates to expandable, polymerizable compositions comprising at least one benzoxazine and at least one cyclic carbonate, to polymerization products of these expandable, polymerizable compositions, to a process for preparing these polymerization products as well as to uses of these expandable, polymerizable compositions. The present invention is based on the surprising finding that copolymerizing benzoxazine monomers with cyclic carbonate monomers results in novel copolymers having unforeseeably high expansion rates, wherein the properties (e.g. solid/brittle, solid/soft, rubbery) of the resulting copolymers can be easily and reproducibly tuned/adjusted, depending on the ratio of the benzoxazine equivalents/cyclic carbonate equivalents present in the composition and copolymer, respectively.

Abstract: The present invention relates to a novel polymeric material with enhanced hydrophilicity for medical use comprising a biocompatible polyester material selected from the group consisting of poly(hydroxyalkanoate)s, poly(lactic acid)s, poly(glycolic acid)s, poly(caprolactone)s and copolymers and blends thereof, wherein the biocompatible polyester material is crosslinked with a functionalized poly(alkylene oxide) having at least two functional groups independently selected from the group consisting of azido-formate and alkanoyl azide. The novel polymeric material with enhanced hydrophilicity is useful as a biocompatible material in a variety of medical applications, including medical implants, bioresorbable implants, tissue engineering, and controlled release.

Abstract: The present invention relates to a novel polymeric material with enhanced hydrophilicity for medical use comprising a biocompatible polyester material selected from the group consisting of poly(hydroxyalkanoate)s, poly(lactic acid)s, poly(glycolic acid)s, poly(caprolactone)s and copolymers and blends thereof, wherein the biocompatible polyester material is crosslinked with a functionalized poly(alkylene oxide) having at least two functional groups independently selected from the group consisting of azido-formate and alkanoyl azide. The novel polymeric material with enhanced hydrophilicity is useful as a biocompatible material in a variety of medical applications, including medical implants, bioresorbable implants, tissue engineering, and controlled release.