Mass transfer kinetics of CO2 and eugenol in the supercritical impregnation of polyamide fibers: Experimental data and modeling

Abstract

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Screening of the Supercritical Impregnation of Olea europaea Leaves Extract into Filaments of Thermoplastic Polyurethane (TPU) and Polylactic Acid (PLA) Intended for Biomedical Applications

“…The occurrence of interactions between the hydroxyl group of thymol and the carbonyl groups of polyesters were observed in PLA and PLGA foams [ 14 ], and in surgical sutures made of caprolactone and glycolide copolymer [ 47 ]. Mosquera et al attributed higher eugenol loadings into polyamide 6 to the interaction via hydrogen-bonding with the OH and ether groups of eugenol [ 48 ]. Furthermore, not only H-bond interactions are significant for the polymer affinity but also the high hydrophilic character of the polyphenols that may displace the partition toward the TPU (due to its polarity) instead of the supercritical fluid.…”

Supercritical CO2 Impregnation of Clove Extract in Polycarbonate: Effects of Operational Conditions on the Loading and Composition

“…CE is mainly obtained from flower buds, rich in eugenol, and contains eugenyl acetate, β-caryophyllene, and α-humulene. CE, or its majoritarian component eugenol, has been impregnated in LLDPE films [19][20][21], polyamide fibers [22,23], pectin films [24], bacterial cellulose membranes [25], and gelatin-chitosan films [26].…”