Synthesis, structure, crystallization and mechanical properties of isodimorphic PBS-ran-PCL copolyesters
| Autor: | Itziar Otaegi, Maryam Safari, Nora Aramburu, Antxon Martínez de Ilarduya, Alejandro J. Müller, Haritz Sardon, G. Guerrica-Echevarría |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química, Universitat Politècnica de Catalunya. POL - Polímers Industrials Avançats i Biopolímers Tecnològics, European Commission |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Work (thermodynamics)
Morphology (linguistics) Materials science Polymers and Plastics crystallization Polymers Organic chemistry 02 engineering and technology Crystal structure 010402 general chemistry 01 natural sciences law.invention isodimorphism chemistry.chemical_compound QD241-441 Enginyeria química [Àrees temàtiques de la UPC] PBS-ran-PCL law Phase (matter) Copolymer Isodimorphism Cristal·lització Crystallization Comonomer Copolymers Random copolymers General Chemistry 021001 nanoscience & nanotechnology PBS-ran_PCL 0104 chemical sciences Polímers Copolímers chemistry Chemical engineering Melting point random copolymers 0210 nano-technology |
| Zdroj: | Addi. Archivo Digital para la Docencia y la Investigación instname Polymers Volume 13 Issue 14 Polymers, Vol 13, Iss 2263, p 2263 (2021) Addi: Archivo Digital para la Docencia y la Investigación Universidad del País Vasco UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 2017-8301 |
| Popis: | Isodimorphic behavior is determined by partial inclusion of comonomer segments within the crystalline structure and arises from the comparatively similar repeating chain units of the parental homopolymers. Isodimorphic random copolymers are able to crystallize irrespective of their composition and exhibit a pseudo-eutectic behavior when their melting point values are plotted as a function of comonomer content. At the pseudo-eutectic point or region, two crystalline phases can coexist. On the right-hand and the left-hand side of the pseudo-eutectic point or region, only one single crystalline phase can form which is very similar to the crystalline structures of the parent homopolymers. This article aims to study the synthesis method, structure, crystallization behavior and mechanical properties of isodimorphic random PBS-ran-PCL copolyesters. Moreover, this study provides a comprehensive analysis of our main recent results on PBS-ran-PCL random copolyesters with three different molecular weights. The results show that the comonomer composition and crystallization conditions are the major factors responsible for the crystalline morphology, crystallization kinetics and mechanical performance of isodimorphic random copolyesters. Our studies demonstrate that in the pseudo-eutectic region, where both crystalline phases can coexist, the crystallization conditions determine the crystalline phase or phases of the copolymer. The relationships between the comonomer composition and mechanical properties are also addressed in this work. This research received the financial support from the BIODEST project. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 778092. We also acknowledge funding from MINECO through grant MAT2017-83014-C2-1-P, and from the Basque Government through grant IT1309-19. This research was funded by ALBA synchrotron facility through granted proposal 2018082953. |
| Databáze: | OpenAIRE |
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