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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vilas, Jose Luis
Processes and Engineering in Mechanics and Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023Advancing on viscosity characterization and modeling of SMC for compression molding simulationcitations
- 2021Broadband dielectric response of silk Fibroin/BaTiO3 composites: Influence of nanoparticle size and concentrationcitations
- 2019mpact of ZnO nanoparticle morphology on relaxation and transport properties of PLA nanocompositescitations
- 2019Impact of ZnO nanoparticle morphology on relaxation and transport properties of PLA nanocompositescitations
- 2018Thermal, optical and structural properties of blocks and blends of PLA and P2HEBcitations
- 2017Thermal, structural and degradation properties of an aromatic-aliphatic polyester built through ring-opening polymerisationcitations
Places of action
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article
Thermal, optical and structural properties of blocks and blends of PLA and P2HEB
Abstract
Biodegradable diblock and triblock copolymers and blends were prepared, consisting of poly(L-lactic acid) and an aromatic/aliphatic polyester mimicking polyethylene phthalate. As poly(2-(2-hydroxyethoxy)benzoate) possesses unique degradability and thermal properties, these novel block copolymers were explored through thermal analysis, UV-Vis spectroscopy, X-ray diffraction and comparative enzymatic and catalytic degradation. Poly(L-lactic acid), the product of ring opening polymerization of L-lactide by an aluminium salen catalyst, was used as a macroinitiator in the ring opening polymerization of 2,3-dihydro-5H-1,4-benzodioxepin-5-one to afford target diblock and triblock copolymers. Copolymerization dramatically improved the thermal and optical properties of poly(2-(2-hydroxyethoxy)benzoate), especially in comparison to polymer blends which favored non-interacting phases that worsened properties. The chemical and enzymatic degradation profiles of the copolymers were studied by depolymerizing with the aforementioned aluminium salen catalyst and degrading with proteinase K.