Synthesis of a Biodegradable Polymer of Poly (Sodium Alginate/Ethyl Acrylate)
Abstract
:1. Introduction
2. Materials and Methods
Synthesis
3. Characterization
3.1. FTIR Spectroscopy
3.2. Differential Scanning Calorimetry (DSC)
3.3. Thermogravimetric Analyses (TGA)
3.4. Tensile Test
3.5. Evaluation of the Action of a Microorganism of Plastics Biodeterioration
4. Results and discussion
4.1. Fourier-Transform Infrared Spectroscopy (FTIR)
4.2. Thermogravimetric Analysis (TGA)
4.3. Differential Scanning Calorimetry (DSC)
4.4. Tensile Test
4.5. Deterioration of Plastics by Scanning Electron Microscopy
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Acknowledgments
Conflicts of Interest
References
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AlgNa | PEA | poly (AlgNa/EA) | Assignment |
---|---|---|---|
3275 | 3271 | O–H stretching | |
2925 | 2925 | C–H stretching of the pyranose ring | |
2979 | -------- | Symmetric stretching C–H of CH3 of Ethyl ester | |
2964 | -------- | Asymmetric stretching C–H of CH3 of Ethyl ester | |
2937 | -------- | Asymmetric stretching C–H of CH2 of Ethyl ester | |
2190 | 2190 | Stretching C☰N nitrile of initiator | |
1726 | 1732 | stretching O=C of ester | |
1598 | 1598 | Asymmetric stretching C–O of COONa | |
1469 | ------ | Asymmetric stretching C–H of CH2 of ethyl Deformation vibration of the CH2 ethyl ester | |
1446 | ------ | Asymmetric stretching CH3 of ethyl Symmetric stretching CH2 esters acrylic | |
1409 | 1386 | Symmetric stretching C–O of the COO− | |
1379 | ------ | Symmetric stretching CH3 of Ethyl | |
1332 | ------- | Twisting CH2 of the ethyl group | |
1257 | 1261 | Asymmetric stretching O=C of R–CO–OR | |
1157 | 1161 | Symmetric stretching C=O of R–CO–OR | |
1097 | ------ | Stretching of C–O–C of saturated esters | |
1027 | 1022 | 1026 | Stretching C–O of C–O–C carbohydrate and ester |
945 | 944 | Symmetric stretching C–O and/or symmetric stretching C–C–H pyranose ring | |
883 | 881 | Symmetric stretching vibration of C–O–C of 1,4 glycosidic links, characteristic of polysaccharides structure ring | |
852 | ------ | Stretching C–C of ethyl | |
817 | 815 | δ C–O–C guluronic and mannuronic acid unit | |
761 | ------ | CH2 rocking |
Nomenclature | Elastic Modulus (MPa) | Tensile Strength (MPa) |
---|---|---|
AlgNa | 3226 | 93.26 |
PEA | 0.006 | 0.585 |
Poly(AlgNa/EA) | 2436 | 97.92 |
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Flores-Hernández, C.G.; Cornejo-Villegas, M.d.l.A.; Moreno-Martell, A.; Del Real, A. Synthesis of a Biodegradable Polymer of Poly (Sodium Alginate/Ethyl Acrylate). Polymers 2021, 13, 504. https://doi.org/10.3390/polym13040504
Flores-Hernández CG, Cornejo-Villegas MdlA, Moreno-Martell A, Del Real A. Synthesis of a Biodegradable Polymer of Poly (Sodium Alginate/Ethyl Acrylate). Polymers. 2021; 13(4):504. https://doi.org/10.3390/polym13040504
Chicago/Turabian StyleFlores-Hernández, Cynthia G., Maria de los Angeles Cornejo-Villegas, Abigail Moreno-Martell, and Alicia Del Real. 2021. "Synthesis of a Biodegradable Polymer of Poly (Sodium Alginate/Ethyl Acrylate)" Polymers 13, no. 4: 504. https://doi.org/10.3390/polym13040504