COMPOSITION FOR PREPARING A NANOSTRUCTURED BIODEGRADABLE POLYMERIC MATERIAL, THE OBTAINED MATERIAL AND USES THEREOF

• Main Authors: ORTUÑO MANSILLA, NATALIA, AUCEJO ROMERO, SUSANA, GALLUR BLANCA, MIRIAM, JORDÁ BENEYTO, MARÍA, GALET DOMINGO, ANA, HORTAL RAMOS, MERCEDES
• Format: Patent
• Language: English; French; German
• Published: 03.02.2016
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The composition comprises a mixture of: i) poly(L-, D-lactide) homopolymer and, optionally, poly(µ-caprolactone) homopolymer, and ii) poly(L-lactide) and poly(µ-caprolactone) diblock copolymer, where said copolymer has a molar mass of the L-lactide block of 20,000 g/mol to 200,000 g/mol and a molar mass of the µ-caprolactone block of 10,000 g/mol to 100,000 g/mol, with the molar ratio between the L-lactide block and the µ-caprolactone block of 2:1. The invention also refers to the nanostructured material obtained from this composition that is characterised by a nanostructure of two mutually self-assembled phases, one phase being formed by a polymeric matrix of poly(L-, D-lactide) units and the other phase by poly(µ-caprolactone) units self-assembled with the matrix and also its use for the manufacture of a plastic article in the form of a transparent film or thin sheet.