Microwave-assisted synthesis of the lipase-catalyzed ring-opening copolymerization of ε-caprolactone and ω-pentadecanolactone: Thermal and FTIR characterization

dc.creatorWILBERTH ANTONIO HERRERA KAO
dc.creatorManuel de Jesús Aguilar Vega
dc.creatorJOSE MANUEL CERVANTES UC
dc.date2020
dc.date.accessioned2023-07-21T19:19:26Z
dc.date.available2023-07-21T19:19:26Z
dc.identifierhttp://cicy.repositorioinstitucional.mx/jspui/handle/1003/1895
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7737447
dc.descriptionMicrowave-assisted synthesis of the lipase-catalyzed ring opening polymerization of ε-caprolactone (ε-CL) and ω-pentadecanolactone (ω-PDL) monomers was studied. A series of P(CL-co-PDL), with different molar feed ratios, including (ε-CL/ω-PDL) 100/0, 75/25, 50/50, 25/75, and 0/100, were synthesized. The resulting polyesters were characterized by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The microwave-assisted polymerization of the monomers reached high conversions (91–95%) within 60 min. FTIR spectra showed the typical absorption bands of these polyesters. A very intense band in the carbonyl region, which was shifted from 1,720 cm−1 for PCL to 1,732 cm−1 for PPDL homopolymer, as well as peaks owing to methylene groups in the 2,990–2,850 cm−1 range. DSC results revealed that all polyester samples were semi-crystalline. Interestingly, the copolymers exhibited only one melting peak (Tm), and their Tm values linearly increased from 57°C to 95°C as PPDL concentration was increased. Thermal stability of polyesters also depended on PDL content; an increase in PDL concentration increases polymer degradation temperature (Td).
dc.formatapplication/pdf
dc.languageeng
dc.relationinfo:eu-repo/semantics/datasetDOI/10.1515/epoly-2020-0067
dc.relationinfo:eu-repo/semantics/altIdentifier/DOI/10.1515/epoly-2020-0067
dc.relationcitation:Herrera-Kao, W. A., Aguilar-Vega, M. J., & Cervantes-Uc, J. M. (2020). Microwave-assisted synthesis of the lipase-catalyzed ring-opening copolymerization of ε-caprolactone and ω-pentadecanolactone: Thermal and FTIR characterization. e-Polymers, 20(1), 651-658.
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourcee-Polymers, 20(1), 651-658, 2020.
dc.subjectinfo:eu-repo/classification/Autores/MICROWAVE-ASSISTED SYNTHESIS
dc.subjectinfo:eu-repo/classification/Autores/LIPASE-CATALYZED RING-OPENING POLYMERIZATION
dc.subjectinfo:eu-repo/classification/Autores/COPOLYESTERS
dc.subjectinfo:eu-repo/classification/Autores/ω-PENTADECANOLACTONE
dc.subjectinfo:eu-repo/classification/Autores/ε-CAPROLACTONE
dc.subjectinfo:eu-repo/classification/cti/7
dc.subjectinfo:eu-repo/classification/cti/33
dc.subjectinfo:eu-repo/classification/cti/3312
dc.subjectinfo:eu-repo/classification/cti/331208
dc.subjectinfo:eu-repo/classification/cti/331208
dc.titleMicrowave-assisted synthesis of the lipase-catalyzed ring-opening copolymerization of ε-caprolactone and ω-pentadecanolactone: Thermal and FTIR characterization
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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