Summary: A new and rather simple method to obtain randomly crosslinked PCL is reported. PCL was previously functionalized through radical grafting of MA and GMA in the melt, using a Brabender‐like apparatus. GMA was added in order to obtain higher grafting efficiency. The structure of PCL‐g‐MAGMA was elucidated by 1H NMR spectroscopy, and the content of grafted MA was determined by FT‐IR spectroscopy. PCL‐g‐MAGMA was successively crosslinked through reaction with HMDI. The degree of crosslinking was determined by solvent extractions with chloroform. Thermal and dynamic mechanical analysis and tensile tests were performed on plain PCL, on PCL‐g‐MAGMA and on crosslinked PCL samples.Schematic representation of PCL‐g‐MAGMA structure.magnified imageSchematic representation of PCL‐g‐MAGMA structure.

The aim of the present work was to develop a family of novel materials based on a combination of sodium alginate and acrylic polymers and to evaluate their potential in drug delivery applications. In the presence of sodium alginate, acrylic chains with acidic as well as basic moieties were polymerized to create an interpolymer complex based on electrostatic interactions that are able to modulate the release rate of low molecular weight drugs. The synthesized materials were used to prepare hydrophilic matrices for drug delivery and tested for their adhesion properties to glass, used as a model substrate for mucoadhesion.