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Chemical Modification of Films from Biosynthetic Poly‐3‐Hydroxybutyrate Aimed to Improvement of Their Surface Properties
Author(s) -
Boyandin Anatoly Nikolayevich,
Sukhanova Anna Alekseevna,
Nikolaeva Elena Dmitrievna,
Nemtsev Ivan Vasilievich
Publication year - 2021
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.202000281
Subject(s) - biocompatibility , contact angle , oxidizing agent , biopolymer , materials science , surface energy , chemical engineering , surface modification , triethylamine , polymer , reagent , wetting , adhesion , polyurethane , alkali metal , polymer chemistry , organic chemistry , chemistry , composite material , engineering , metallurgy
Abstract Films from biodegradable poly‐3‐hydroxybutyrate are treated with chemical reagents to improve their hydrophilicity and biocompatibility. Two approaches are tested: a single treatment with alkali, acids, oxidizing or reducing agents, and a step‐by step treatment of the alkali pre‐activated surface of polymer films with bromine water and amino‐compounds (ammonia or triethylamine). The maximal level of hydrophilicity (the lowest water contact angle and the highest polar component of the surface free energy) is registered after a single treatment with NaOH and after the step‐by‐step treatment. These samples also showed the best adhesion of mouse fibroblasts of NIH 3T3 line on the film surface. So, the proposed methods can be used to enhance hydropilicity and biocompatibility of biopolymer surface.