1
|
Alexeeva OV, Olkhov AA, Konstantinova ML, Podmasterev VV, Petrova TV, Martirosyan LY, Karyagina OK, Kozlov SS, Lomakin SM, Tretyakov IV, Siracusa V, Iordanskii AL. A Novel Approach for Glycero-(9,10-trioxolane)-Trialeate Incorporation into Poly(lactic acid)/Poly(ɛ-caprolactone) Blends for Biomedicine and Packaging. Polymers (Basel) 2023; 16:128. [PMID: 38201793 PMCID: PMC10780447 DOI: 10.3390/polym16010128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 12/26/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
The product of ozonolysis, glycero-(9,10-trioxolane)-trioleate (ozonide of oleic acid triglyceride, [OTOA]), was incorporated into polylactic acid/polycaprolactone (PLA/PCL) blend films in the amount of 1, 5, 10, 20, 30 and 40% w/w. The morphological, mechanical, thermal and antibacterial properties of the biodegradable PLA/PCL films after the OTOA addition were studied. According to DSC and XRD data, the degree of crystallinity of the PLA/PCL + OTOA films showed a general decreasing trend with an increase in OTOA content. Thus, a significant decrease from 34.0% for the reference PLA/PCL film to 15.7% for the PLA/PCL + 40% OTOA film was established using DSC. Observed results could be explained by the plasticizing effect of OTOA. On the other hand, the PLA/PCL film with 20% OTOA does not follow this trend, showing an increase in crystallinity both via DSC (20.3%) and XRD (34.6%). OTOA molecules, acting as a plasticizer, reduce the entropic barrier for nuclei formation, leading to large number of PLA spherulites in the plasticized PLA/PCL matrix. In addition, OTOA molecules could decrease the local melt viscosity at the vicinity of the growing lamellae, leading to faster crystal growth. Morphological analysis showed that the structure of the films with an OTOA concentration above 20% drastically changed. Specifically, an interface between the PLA/PCL matrix and OTOA was formed, thereby forming a capsule with the embedded antibacterial agent. The moisture permeability of the resulting PLA/PCL + OTOA films decreased due to the formation of uniformly distributed hydrophobic amorphous zones that prevented water penetration. This architecture affects the tensile characteristics of the films: strength decreases to 5.6 MPa, elastic modulus E by 40%. The behavior of film elasticity is associated with the redistribution of amorphous regions in the matrix. Additionally, PLA/PCL + OTOA films with 20, 30 and 40% of OTOA showed good antibacterial properties on Pseudomonas aeruginosa, Raoultella terrigena (Klebsiella terrigena) and Agrobacterium tumefaciens, making the developed films potentially promising materials for wound-dressing applications.
Collapse
Affiliation(s)
- Olga V. Alexeeva
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (A.A.O.); (M.L.K.); (V.V.P.); (L.Y.M.); (O.K.K.); (S.S.K.); (S.M.L.)
| | - Anatoliy A. Olkhov
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (A.A.O.); (M.L.K.); (V.V.P.); (L.Y.M.); (O.K.K.); (S.S.K.); (S.M.L.)
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, 119991 Moscow, Russia; (T.V.P.); (I.V.T.); (A.L.I.)
- Academic Department of Innovational Materials and Technologies Chemistry, Plekhanov Russian University of Economics, 117997 Moscow, Russia
| | - Marina L. Konstantinova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (A.A.O.); (M.L.K.); (V.V.P.); (L.Y.M.); (O.K.K.); (S.S.K.); (S.M.L.)
| | - Vyacheslav V. Podmasterev
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (A.A.O.); (M.L.K.); (V.V.P.); (L.Y.M.); (O.K.K.); (S.S.K.); (S.M.L.)
| | - Tuyara V. Petrova
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, 119991 Moscow, Russia; (T.V.P.); (I.V.T.); (A.L.I.)
| | - Levon Yu. Martirosyan
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (A.A.O.); (M.L.K.); (V.V.P.); (L.Y.M.); (O.K.K.); (S.S.K.); (S.M.L.)
| | - Olga K. Karyagina
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (A.A.O.); (M.L.K.); (V.V.P.); (L.Y.M.); (O.K.K.); (S.S.K.); (S.M.L.)
| | - Sergey S. Kozlov
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (A.A.O.); (M.L.K.); (V.V.P.); (L.Y.M.); (O.K.K.); (S.S.K.); (S.M.L.)
| | - Sergey M. Lomakin
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (A.A.O.); (M.L.K.); (V.V.P.); (L.Y.M.); (O.K.K.); (S.S.K.); (S.M.L.)
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, 119991 Moscow, Russia; (T.V.P.); (I.V.T.); (A.L.I.)
| | - Ilya V. Tretyakov
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, 119991 Moscow, Russia; (T.V.P.); (I.V.T.); (A.L.I.)
| | - Valentina Siracusa
- Department of Chemical Science (DSC), University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Alexey L. Iordanskii
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, 119991 Moscow, Russia; (T.V.P.); (I.V.T.); (A.L.I.)
| |
Collapse
|
2
|
Alexeeva O, Olkhov A, Konstantinova M, Podmasterev V, Tretyakov I, Petrova T, Koryagina O, Lomakin S, Siracusa V, Iordanskii AL. Improvement of the Structure and Physicochemical Properties of Polylactic Acid Films by Addition of Glycero-(9,10-trioxolane)-Trialeate. Polymers (Basel) 2022; 14:3478. [PMID: 36080553 PMCID: PMC9460106 DOI: 10.3390/polym14173478] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 12/01/2022] Open
Abstract
Glycero-(9,10-trioxolane)-trioleate (ozonide of oleic acid triglyceride, OTOA) was introduced into polylactic acid (PLA) films in amounts of 5, 10, 30, 50, and 70% w/w. The morphological, mechanical, thermal, and water absorption properties of PLA films after the OTOA addition were studied. The morphological analysis of the films showed that the addition of OTOA increased the diameter of PLA spherulites and, as a consequence, increased the proportion of amorphous regions in PLA films. A study of the thermodynamic properties of PLA films by differential scanning calorimetry (DSC) demonstrated a decrease in the glass transition temperature of the films with an increase in the OTOA content. According to DSC and XRD data, the degree of crystallinity of the PLA films showed a tendency to decrease with an increase in the OTOA content in the films, which could be accounted for the plasticizing effect of OTOA. The PLA film with 10% OTOA content was characterized by good smoothness, hydrophobicity, and optimal mechanical properties. Thus, while maintaining high tensile strength of 21 MPa, PLA film with 10% OTOA showed increased elasticity with 26% relative elongation at break, as compared to the 2.7% relative elongation for pristine PLA material. In addition, DMA method showed that PLA film with 10% OTOA exhibits increased strength characteristics in the dynamic load mode. The resulting film materials based on optimized PLA/OTOA compositions could be used in various packaging and biomedical applications.
Collapse
Affiliation(s)
- Olga Alexeeva
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Anatoliy Olkhov
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
- Academic Department of Innovational Materials and Technologies Chemistry, Plekhanov Russian University of Economics, 117997 Moscow, Russia
| | - Marina Konstantinova
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Vyacheslav Podmasterev
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Ilya Tretyakov
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Tuyara Petrova
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Olga Koryagina
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Sergey Lomakin
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Valentina Siracusa
- Department of Chemical Science (DSC), University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Alexey L. Iordanskii
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
| |
Collapse
|