PLA-based materials with eugenol moieties covalently bonded to the macromolecular chains were synthesized for potential application in bioactive food packaging. The synthetic strategy relies on the exploitation of O-Carboxyanhydrides (OCAs) as versatile and easily modifiable monomers. More precisely, eugenol-bearing L-malic acid-derived OCA (L-MalOCA) was synthesized and used as monomer, in homo- and co-polymerization reactions. In the latter case, two different ratios of functionalized L-MalOCA were employed, with respect to the standard L-lactic acid-derived OCA (L-LacOCA) monomer. Homopolymer and copolymers were fully characterized and their thermal properties were investigated, highlighting the effect on the final polymer of varying the concentration of the L-MalOCA-derived monomer. A moderate antimicrobial activity was detected for the eugenol-rich L-MalOCA-derived homopolymerization product, making it promising for developments in the field of bioactive and biodegradable PLA-based materials.
Eugenol-grafted aliphatic polyesters : Towards inherently antimicrobial PLA-based materials exploiting OCAs chemistry / S. Gazzotti, S.A. Todisco, C. Picozzi, M.A. Ortenzi, H. Farina, G. Lesma, A. Silvani. - In: EUROPEAN POLYMER JOURNAL. - ISSN 0014-3057. - 114(2019), pp. 369-379.
|Titolo:||Eugenol-grafted aliphatic polyesters : Towards inherently antimicrobial PLA-based materials exploiting OCAs chemistry|
GAZZOTTI, STEFANO (Corresponding)
SILVANI, ALESSANDRA (Corresponding)
|Parole Chiave:||Antimicrobial; Copolymerization; Eugenol; O-Carboxyanhydrides; Polylactic acid|
|Settore Scientifico Disciplinare:||Settore CHIM/06 - Chimica Organica|
|Data di pubblicazione:||2019|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.eurpolymj.2019.03.001|
|Appare nelle tipologie:||01 - Articolo su periodico|