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Recolector de Ciencia Abierta, RECOLECTA
Bachelor thesis . 2025
License: CC BY NC SA
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Synthesis, characterization and processing of lactide and ethylene brassylate-based copolymers

Authors: Zubizarreta Cuerda, Xabier;

Synthesis, characterization and processing of lactide and ethylene brassylate-based copolymers

Abstract

En el presente trabajo de fin de grado (TFG), se realizó un estudio sobre copolímeros basados en L-lactida y brasilato de etileno, con el fin de modificar sus propiedades mecánicas a través de distintos tratamientos. En este estudio, se sintetizaron 3 copolímeros con distinto porcentaje en peso de brasilato de etileno, y posteriormente se procedió a su caracterización mediante calorimetría diferencial de barrido, resonancia magnética nuclear, cromatografía de permeación de gel y ensayos de tracción. A partir de estos, se obtuvo su peso molecular, su composición y sus transiciones térmicas. Una vez obtenidos los polímeros, estos se procesaron mediante moldeo por compresión, y las propiedades mecánicas de los filmes resultantes se determinaron mediante ensayos de tracción tanto a temperatura ambiente como a temperatura corporal. Ha sido un trabajo desarrollado en los laboratorios del Grupo de Ciencia e Ingeniería de Biomateriales Poliméricos (Grupo ZIBIO), grupo que cuenta con una gran experiencia en materiales poliméricos con amplios usos en el área biomédica.

Gradu amaierako lan honetan (TFG), L-laktida eta etileno-brasilatoan oinarritutako kopolimeroei buruzko ikerketa bat egin da, tratamendu ezberdinen bidez haien propietate mekanikoak aldatzeko. Ikerketa honetan, etileno-brasilatoaren pisu-portzentaje ezberdineko 3 kopolimero sintetizatu dira. Ondoren, haien karakterizazioa egin da ekorketako kalorimetria diferentziala, erresonantzia magnetiko nuklearra, gel-permeatze-kromatografia eta trakzio-probak erabiliz. Horietatik, haien pisu molekularra, konposizioa eta trantsizio termikoak lortu ziren. Polimeroak lortu ondoren, konpresio moldaketaren bidez bidez prozesatu ziren, eta ondoriozko filmen propietate mekanikoak tentsio-saiakuntzen bidez zehaztu ziren bai giro-tenperaturan, bai gorputz-tenperaturan. Biomaterial Polimerikoen Zientzia eta Ingeniaritza Taldeko (ZIBIO Taldea) laborategietan garatutako lana izan da. Ikerketa talde honek, esperientzia zabala baitu material polimerikoekin, arlo biomedikoan erabilera zabala dutenak.

In this end of degree project (TFG) a study on copolymers based on L-lactide and ethylene brassylate was carried out, with the aim of modifying their mechanical properties through various treatments. In this study, 3 copolymers with different weight percentages of ethylene brassylate were synthesized and characterized using differential scanning calorimetry, nuclear magnetic resonance, gel permeation chromatography and tensile testing. From these analyses, the molecular weight, composition and thermal transitions were obtained. Once the polymers were synthesized, they were processed through compression molding, and the mechanical properties of the resulting films were determined by tensile tests at room temperature and body temperature. This work was developed in the laboratories of the Group of Science and Engineering of Polymer Biomaterials (ZIBIO Group), a group with extensive experience in polymeric materials with wide applications in the biomedical field.

Country
Spain
Keywords

L-laktida, ethylene Brassylate, copolímeros, termoplastikoak, L-lactide, kopolimeroak, copolymers, brasilato de Etileno, termoplásticos, etileno Brasilatoa, L-lactida, thermoplastics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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