FIBROUS BIODEGRADABLE MATERIAL WITH HYDROPHOBIC-HYDROPHILIC PROPERTIES Russian patent published in 2021 - IPC C08G63/91 C08L67/04 C08L101/16 

FIELD: polymeric materials.

SUBSTANCE: invention relates to the field of biodegradable and biocompatible polymeric materials with hydrophobic-hydrophilic properties, and can be used in medicine and cosmetology. Microfiber biodegradable material with hydrophobic-hydrophilic properties based on microfiber poly-3-hydroxybutyrate (PHB) obtained by the interaction of PHB with 2-hydroxyethyl methacrylate (HEMA) at a mass ratio of PHB:HEMA equal to 1:0.6-2.2, in the presence of an ion-coordination catalyst polymerization of VO(DMSO)₅(ClO₄)₂ at a temperature of 75-85°С, retains the ability of PHB fibers to complete biodegradation and is characterized by a sorption capacity to water vapor of at least 3%. The fiber diameter of the material does not exceed 16 microns. The material is hydrophilic, several times higher than the hydrophilicity of the original PHB, and at the same time it retains a high biodegradability.

EFFECT: invention provides the required properties.

2 cl, 3 dwg, 3 ex