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Electrospun Fibers Containing Bio‐Based Ricinoleic Acid: Effect of Amount and Distribution of Ricinoleic Acid Unit on Antibacterial Properties
Author(s) -
Totaro Grazia,
Paltrinieri Laura,
Mazzola Giuseppe,
Vannini Micaela,
Sisti Laura,
Gualandi Chiara,
Ballestrazzi Antonio,
Valeri Sergio,
Pollicino Antonino,
Celli Annamaria,
Di Gioia Diana,
Focarete Maria Letizia
Publication year - 2015
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201500129
Subject(s) - ricinoleic acid , copolymer , electrospinning , materials science , fiber , chemical engineering , polymer chemistry , adhesion , polymer , composite material , organic chemistry , chemistry , castor oil , engineering
Novel bio‐based and biodegradable electrospun membranes, containing bactericidal ricinoleic acid (RA) units either by copolymerization with butylene succinate (BS) units or by blending PRA and PBS homopolymers, are characterized in their chemical, thermal, mechanical and surface properties. In the blends E. coli and S. aureus mortality rate increases with PRA amount, while the copolymer shows lower bactericidal activity compared to the blend with similar composition. XPS demonstrates that in the blends an enrichment of RA units at the fiber surface occurs during electrospinning due to phase separation, while in the copolymer RA units are homogeneously dispersed along fiber cross‐section.