Polymeric materials of the polyester-carbonate family and reactions for the formation of such materials

摘要

The present invention relates to polymeric materials of the polyester-carbonate family. These materials contain segments of polycaprolactone (PCL) with a molecular weight of between 500 and 15,000, linked or unlinked to segments of polyoxyethylene glycols (PEGs) or polyoxypropylene glycols with a molecular weight of between 188 and 4,000, said materials being defined by the following general formula: <CHEM> Where: n is a number between 4 and 135; z is a number between 5 and 300; X may be an alkylenic group or another, more complex, group.